Sphere A of mass is moving with velocity along the positive –axis on a smooth…

PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

Sphere A of mass

0.30\,\text{kg}

is moving with velocity

4\,\text{m s}^{-1}

along the positive

x

–axis on a smooth horizontal table. Sphere B of mass

0.40\,\text{kg}

is simultaneously moving with velocity

3\,\text{m s}^{-1}

along the positive

y

–axis. They collide when the line of centres is along the

x

–axis. The coefficient of restitution is

0.8

. (i) Find the

x

–component of velocity of each sphere just after the collision. (ii) Calculate the loss of kinetic energy in the collision.