Laws Of Motion Question 257

Question: A ball of mass m moves with speed v and it strikes normally with a wall and reflected back normally, if its time of contact with wall is t then find force exerted by ball on wall [BCECE 2005]

Options:

A) 2mvt

B) mvt

C) mvt

D) mv2t

Show Answer

Answer:

Correct Answer: A

Solution:

For exerted by ball on wall = rate of change in momentum of ball = mv(mv)t=2mvt



NCERT Chapter Video Solution

Dual Pane