A moving body of mass m and velocity v after colliding from a wall returns back (rebounds) with velocity v. The change in momentum will be
A. 2 mv
B. mv
C. – mv
D. zero
Answer:A
A moving body of mass m and velocity v after colliding from a wall returns back (rebounds) with velocity v. The change in momentum will be
A. 2 mv B. mv C. – mv D. zero