Pradeep Singh and Jatinder Singh Solutions for Chapter: Force and Laws of Motion, Exercise 1: CHAPTER TEST

Two blocks made of different metals identical in shape and size are acted upon by equal forces which cause them to slide on a horizontal surface. The acceleration of the second block is found to be 5 times that of the first. What is the ratio of the mass of the second to first?

An object undergoes an acceleration of $8 {\mathrm{ms}}^{-2}$ starting from rest. Find the distance travelled in $1 \mathrm{second}$.

A body of mass $500 \mathrm{g}$ is at rest on a frictionless surface. Calculate the distance travelled by it in $10$ second when acted upon by a force of $10\mathrm{N}$.

You might have observed that when you walk on ice you take small steps. Why ?

Why you have to apply more force in moving a cycle which is punctured ?

If someone jumps to the shore from a boat, the boat moves in the opposite direction. Why?

Why a fireman finds it difficult to hold a hose, which ejects large amounts of water at a high speed?

Why you tie the luggage with a rope on the roof of buses?