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Example Questions
Example Question #1 : Kinematics Equations
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:
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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