Kerala Board Solutions for Chapter: Motion and Laws of Motion, Exercise 2: Let us assess

What are the balanced forces that act on a book at rest on a table?

To remove the dust from a carpet, it is suspended and hit with a stick. What is the scientific principle behind it?

A car and a bus are travelling at the same velocity. Which has greater momentum? Why?

On the basis of Newton's Third Law of Motion, explain the force that helps to propel a rocket upward.

A car travels at a velocity of $15 \mathrm{m} {\mathrm{s}}^{-1}$. The total mass of the car and the passenger in it is $1000 \mathrm{kg}$. Find the momentum of the car.

When a bullet is fired from a gun, the gun recoils. Give reason?

When a bus at rest suddenly moves forward, the passengers, standing in the bus, fall backward. Give reason.

We slip on a mossy surface. Give reason.