Kinematics Question 626

Question: A body of mass M is projected horizontally with a velocity v from the top of a tower of height h and it reaches the ground at a distance x from the foot of the tower. If a second body of mass 2M is projected horizontally from the top of a tower of height 2h, it reaches the ground at a distance 2x from the foot of the tower. The horizontal velocity of the second body is

Options:

A)  v

B)2v

C) 2v

D)v/2

Show Answer

Answer:

Correct Answer: C

Solution:

[c] x=v2hg,2x=v2(2h)g=2v



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