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Biblioteka

Momentum Test

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Posljednje ažuriranje 2 months ago
32 questions
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Pitanje 1
1.

Which of the following has the largest momentum relative to the Earth's surface?

Pitanje 2
2.

A freight train rolls along a track with considerable momentum. If it rolls with the same speed but has twice as much mass, its momentum is looking

Pitanje 3
3.

A rifle recoils while firing a bullet. The speed of the rifle's recoil is small because the

Pitanje 4
4.

A 2250 kg pickup truck has a velocity of 25 m/s to the east. What is the momentum of the truck?

Pitanje 5
5.

An egg thrown with an initial velocity of 15 m/s comes to a full stop when hitting a wall and when hitting a sheet. The change in momentum is greater for the egg hitting the

Pitanje 6
6.

A 4-kg ball has a momentum of 12 kg m/s. What is the ball’s speed?

Pitanje 7
7.

The forces that act on a box are shown below. If these forces act for 10 seconds, what is the impulse delivered to the box?

Pitanje 8
8.

A karate expert executes a swift blow and breaks a cement block with her bare hand. The magnitude of the force experienced by her hand is

Pitanje 9
9.

A 1-kg chunk of putty moving at 1 m/s collides with and sticks to a 5-kg bowling ball initially at rest. The bowling ball and putty then move with a momentum of

Pitanje 10
10.

A large metal ball is shot from a cannon with a short barrel. If the same ball were to be shot from cannon with a longer barrel, its velocity would be

Pitanje 11
11.

A 2.0-kg ball strikes a wall with a velocity of 30 m/s, and bounces back in the other direction with a velocity of 28 m/s, as shown:

What is the change in momentum of the ball?

Pitanje 12
12.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the x-component of the initial velocity? (nearest hundreth)

Pitanje 13
13.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the y-component of the initial velocity? (nearest hundreth)

Pitanje 14
14.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the x-component of the final velocity? (nearest hundreth)

Pitanje 15
15.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the y-component of the final velocity? (nearest hundreth)

Pitanje 16
16.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the magnitude of the change in velocity? (nearest hundreth)

Pitanje 17
17.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the direction of the change in velocity? (nearest hundreth and from 0 degrees)

Pitanje 18
18.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the magnitude of the change in momentum? (nearest hundreth)

Pitanje 19
19.

A soccerball of mass 2 kg is travelling with a velocity of 3.6 m/s at 25 degrees N of E. After it is kicked the ball then travels with a velocity of 6.2 m/s at 39 degrees W of N.

What is the magnitude of the impact force if the time of impact was 3 seconds? (nearest hundreth)

Pitanje 20
20.

Jeanne rolls a 7.0 kg bowling ball down the alley for the league championship. One pin, of mass 2 kg is still standing, and the bowling ball hits it head-on with a velocity of 9.0 m/s The pin acquires a forward velocity of 14.0 m/s. What is the new velocity of the bowling ball?

Which is the correct equation for conservation of momentum in this situation?

Pitanje 21
21.

Jeanne rolls a 7.0 kg bowling ball down the alley for the league championship. One pin, of mass 2 kg is still standing, and the bowling ball hits it head-on with a velocity of 9.0 m/s The pin acquires a forward velocity of 14.0 m/s. What is the new velocity of the bowling ball?

Which is the correct equation for finding the new velocity of the bowling ball?

Pitanje 22
22.

Jeanne rolls a 7.0 kg bowling ball down the alley for the league championship. One pin, of mass 2 kg is still standing, and the bowling ball hits it head-on with a velocity of 9.0 m/s The pin acquires a forward velocity of 14.0 m/s. What is the new velocity of the bowling ball? (nearest hundreth)

Pitanje 23
23.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Which equation would you use to figure out the deceleration of the post-crash vehicles?

Pitanje 24
24.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Find the deceleration of the post-crash vehicles? (nearest hundreth)

Pitanje 25
25.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Which equation would you use to figure out the speed of the post-crash vehicles when they began to slide?

Pitanje 26
26.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Find the speed of the post-crash vehicles when they began to slide? (nearest hundreth)

Pitanje 27
27.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Which is the correct equation for conservation of momentum in this situation

Pitanje 28
28.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Which is the correct equation for finding the pre-collision speed of the truck?

Pitanje 29
29.

A 30230-kg truck collides head on with a 1050-kg parked car. The vehicles entangle together and slide a linear distance of 5.6 meters before coming to rest. Assuming a uniform coefficient of friction of 0.550 between the road surface and the vehicles, determine the pre-collision speed of the truck.

Find the pre-collision speed of the truck? (nearest hundreth)

Pitanje 30
30.

A 258 kg child is standing on a 543 kg raft that is drifting with a velocity of 21.1 m/s north relative to the water. The child then walks on the raft with a net velocity of 0.21 m/s west relative to the water. Fluid friction between the raft and water is negligible.

What is the magnitude of the final momentum of the raft? (nearest hundreth)

Pitanje 31
31.

A 258 kg child is standing on a 543 kg raft that is drifting with a velocity of 21.1 m/s north relative to the water. The child then walks on the raft with a net velocity of 0.21 m/s west relative to the water. Fluid friction between the raft and water is negligible.

What is the direction of the final momentum of the raft? (nearest hundreth and from 0 degrees)

Pitanje 32
32.

A 258 kg child is standing on a 543 kg raft that is drifting with a velocity of 21.1 m/s north relative to the water. The child then walks on the raft with a net velocity of 0.21 m/s west relative to the water. Fluid friction between the raft and water is negligible.

What is the magnitude of the final velocity of the raft? (nearest hundreth)