SAT II Physics : Linear Motion

Study concepts, example questions & explanations for SAT II Physics

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Example Questions

Example Question #11 : Mechanics

Q6

If the block of mass  slides up a frictionless incline plane and is pulled by mass  which is falling then what is the acceleration of the block on the ramp if  and  and the angle of incline is 30 degrees?

Possible Answers:

Correct answer:

Explanation:

Begin by making a free body diagram for each block:

Q62

Use the diagram to write an equation for net force on each block:

Since  for the block on the ramp and  for falling block we can substitute into these equations:

Then add the equations to get:

Next rearrange to isolate :

Substitute the given values from the question and solve:

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