Embibe Experts Solutions for Chapter: Kinematics, Exercise 1: Exercise 1

When an object moves with constant speed in a circular path, then which of the followings is false.

A man travels $3 \mathrm{m}$ due north, then turns at $90°$ and travels $4 \mathrm{m}$ due east. The magnitude of the displacement of the man is

What does the speedometer of a vehicle read/measure

 An athlete completes a circular track of radius $70$ metres in $20 \mathrm{s}$. The average velocity of the athlete is 

Out of the followings, which cannot be negative?

A ball is dropped from height '$h$'. The velocity attained by ball just before reaching the ground

A projectile is projected vertically upward. The time of ascent of the projectile is $2 \mathrm{s}$. The time of descent of the projectile is

Maximum range of a projectile of mass $1\mathrm{kg}$ fired at an angle of $45°$ with the horizontal is $50 \mathrm{m}$. If a projectile of mass $2\mathrm{kg}$ is fired at an angle of $45°$ with the horizontal, then the maximum range of the projectile is