R P Goyal and S P Tripathi Solutions for Chapter: Motion in One Dimension, Exercise 1: EXERCISE–2(A)

A car moving on a straight path covers a distance of $1 \mathrm{km}$due east in $100 \mathrm{s}$. What is the velocity of the car ?

 A body starts from rest and acquires a velocity $10 \mathrm{m} {\mathrm{s}}^{-1}$ in $2 \mathrm{s}$. Find the acceleration.

A car starting from rest acquires a velocity $180 \mathrm{m} {\mathrm{s}}^{-1}$ in $0.05 \mathrm{h}$. Find the acceleration.

A body is moving vertically upwards. Its velocity changes at a constant rate from $50 \mathrm{m} {\mathrm{s}}^{-1}$to $20 \mathrm{m} {\mathrm{s}}^{-1}$  in $3 \mathrm{s}$. What is its acceleration? 

A toy car initially moving with a uniform velocity of $18 \mathrm{km} {\mathrm{h}}^{-1}$ comes to a stop in $2 \mathrm{s}$. Find the retardation of the car in S.I. units.

A car accelerates at a rate of $5 \mathrm{m} {\mathrm{s}}^{-2}$. Find the increase in its velocity in  $2 \mathrm{s}$.

A car is moving with a velocity of $20 \mathrm{m} {\mathrm{s}}^{-1}$. The brakes are applied to retard it at a rate of $2 \mathrm{m} {\mathrm{s}}^{-2}$. What will be the velocity after $5 \mathrm{s}$ of applying the brakes?

A bicycle initially moving with a velocity $5.0 \mathrm{m} {\mathrm{s}}^{-1}$ accelerates for $5 \mathrm{s}$ at a rate of $2 \mathrm{m} {\mathrm{s}}^{-2}$. What will be its final velocity?