# Assignments

1.Two balls of mass 5 kg each moving in opposite directions with equal speed say 10 m/s collide head on with each other. Predict the outcome of the collision assuming it to be

- Perfectly elastic
- Perfectly inelastic.

2. A girl , mass 70.0 Kg is running 3 m/s east when she jumps onto a stationary skateboard , mass 2 Kg. What is the velocity of the girl and skateboard assuming they moveoff together ?

3.A toy truck with mass 20 Kg, travels along a level table top at .50m/s. A miniature car, with mass 5.00 g , speeds headlong towards the toy truck at .75 m/s. Immediately after collision, toy truck continues its original direction at 0.10 m/s. What is the velocity of the miniature car?