Kinematics Question 159

Question: A body is slipping from an inclined plane of height h and length l . If the angle of inclination it’s θ , the time taken by the body to come from the top to the bottom of this inclined plane is

Options:

A) 2hg

B) 2lg

C) 1sinθ2hg

D) sinθ2hg

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Force down the plane = mg sinθ Acceleration down the plane = g sinθ Since l =0+ 12gsinθt2

l2=2gsinθ=2hgsin2θt=1sinθ2hg



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