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Test Unit 1.2 and 2 Oct 18 2019 Phy-1

Last updated almost 6 years ago

34 questions

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In inelastic collision...

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Remember in this type of graph, there is a time for stopping the object and another for changing the direction.

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The momentum of a particle stays constant provided that

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What does the area under the line represent in Force - distance graph?

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If the mass of the car is 1,000 kg, how much is the force of the engine (thrust)?

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If an object is sliding down at constant speed with friction. Find the magnitude of F.

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If an object is sliding down at constant speed with friction. Find the magnitude of R.

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The time taken for a stone dropped from rest to fall vertically through 16 m is 2.0 s. Based on these measurements, what is the best estimate for the acceleration of free fall?

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Which graph shows the velocity when we have a constant net force in a system starting from rest.

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Which graph shows the velocity when we have a constant net force in a system when there already an initial velocity of the object.

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Find the change in velocity:

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Choose the correct answer and show your work!!!

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SHOW YOUR WORK!!!!!!!!

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A body of mass 2.0 kg (initially at rest) slides down a curved path of total length 22 m. The body starts from a vertical height of 5.0 m from the bottom. When it reaches the bottom, its speed is measured and found to equal 6.0 ms-1.
a) Find the energy lost in the friction.
b) Assuming the force to have constant magnitude, determine the magnitude of the force of friction exerted by the work of friction.

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Choose the correct answer and show your work.

Remember that this type of graph has two times, one to stop the object and another for changing the direction of it.