Question

A toy car of mass 1 kg is moving with a speed 20 m/s and it is pushed by Rima with a force 4N for four seconds, now the car is moving with a greater speed v. Another toy car of mass 0.5 kg is coming with a speed 4 m/s from opposite direction. These two collide, after collision the first toy car is moving with speed 5 m/s along forward direction. (i) Initial momentum of the first toy car is​

Answer 1

Answer:

Mass of the toy car,

m=200 g=0.2 kg

Speed, v=5 m/s

Momentum,p=m×v

P=0.2×5=1 kg.m/s