Q1: A bullet of mass 0.01kg moves horizontally with a speed of 400m/s and embeds itself in a block of wood of mass 0.39kg that is initally at rest on a frictionless table. What is the final velocity of the bullet and the block after the collision?
Q2: A man of mass 70kg and a boy of mass 35kg are standing together on a smooth ice surface. They push each other apart so that the man moves away with a speed of 0.30m/s. What is the final velocity of the boy?
I am taking a course that named introduction to engineering, but in these two questions, I can't apply the rules that I have learnt. I really need some hints to solve these questions.
Q2: A man of mass 70kg and a boy of mass 35kg are standing together on a smooth ice surface. They push each other apart so that the man moves away with a speed of 0.30m/s. What is the final velocity of the boy?
I am taking a course that named introduction to engineering, but in these two questions, I can't apply the rules that I have learnt. I really need some hints to solve these questions.
