In order for Baymax (84 kg) to save Hiro, he sends his powered fistbump forward while he travels backward. If Hiro and the fistbump (63 kg combined mass) move forward at 13 m/s, how fast is Baymax moving backward?
Question 14
14.
Question 15
15.
Question 16
16.
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What does the symbol p represent in physics?
Force
Momentum
Impulse
Mass
What does the symbol J represent in physics?
Momentum
Impulse
Force
Mass
Impulse-Momentum Theorem states that-
If the impulse is greater than the momentum then the object will move in the opposite direction
Momentum is inversely dependant on the Impulse
Momentum will be conserved in the system
Impulse is equal to the change in momentum
Find the velocity of a 4000kg truck with 5,000kgm/s of momentum?
0.80 m/s
9,000 m/s
1.25 m/s
20,000 m/s
A 0.43kg hockey puck is hit at 27m/s to a stationary 76kg goalie. The goalie blocks the puck and is pushed into the goal slightly. What is the velocity of the puck and the goalie after he catches the puck?
76.43m/s
0.8425m/s
0.1519m/s
11.61m/s
Seat belts will ____ the time of impact causing the force exerted on the passenger to __?
increase the time, increase the force
decrease the time, increase the force
increase the time, decrease the force
decrease the time, decrease the force
Find the magnitude of the impulse on a 2,200kg missile when it reaches 340m/s (speed of sound).
6.47
2540
0.15
748,000
Gwen Stacy, 46kg, is falling down at 16 m/s before Spiderman catches her. It takes 0.07 seconds for Spiderman to stop her. What is the force that was exerted on her to attempt to save her life?
10,514 N
51.5 N
62.1 N
736 N
A llama runs and jumps onto a stationary wagon and both llama and wagon roll away together. This is-
Explosion
Inelastic collision
Elastic collision
None
Two ice skaters are standing together in the middle of a frozen pond. They push off of each other to reach the edge of the pond. This is-
Explosion
None
Elastic collision
Inelastic collision
Which of the following has the least momentum?
7,000 kg mass moving at 0.05 m/s
0.7 kg mass moving at 5000 m/s
7 kg mass moving at 5 m/s
700 kg mass moving at .50 m/s
A lab is conducted with two carts of unknown masses. The carts initially start at rest and move apart so both carts travel in opposite directions. Cart A’s velocity is found to be 12 m/s to the left, while Cart B’s velocity is found to be 9 m/s to the right. What conclusions can be drawn from the experiment?
Cart B has more mass than Cart A
Cart A has more mass than Cart B
Cart B has more momentum than Cart A
Cart A has more momentum than Cart B
During an explosion, Cart A is 4kg, while Cart B is 1 kg. Select all that are true.
Cart A has more momentum than Cart B
Cart A has the same momentum as Cart B
Cart A has less momentum than Cart B
Cart A moves faster than Cart B
Cart A moves the same speed as Cart B
Cart A moves slower than Cart B
What can be said about the system total ‘Before’ the explosion and the system total ‘After’ the explosion?