Kinematics Question 519

Question: A boy projects a stone vertically perpendicular to the trolley car with a speed v . If the trolley car moves with u constant velocity m, the time of flight of the stone is:

Options:

A) u+vg

B) 2vg

C) 2ug

D) none of these

Show Answer

Answer:

Correct Answer: B

Solution:

[b] v0sinθ=v

v0cosθ=u

Time of flight depends on vertical component of velocity. T=2v0sinθg=2vg



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