A boy throws a ball with a velocity u at an angle θ with horizontal. At same instant he starts runn

English

Gujarati

Hindi

3-2.Motion in Plane

medium

A boy throws a ball with a velocity $u$ at an angle $\theta$ with the horizontal. At the same instant he starts running with uniform velocity to catch the ball before if hits the ground. To achieve this he should run with a velocity of

A

$u \cos \theta$

B

$u \sin \theta$

C

$u \tan \theta$

D

$u \sec \theta$

Solution

(a)

Velocity of boy should be equal to the horizontal component of velocity of ball.

Standard 11

Physics

Share

Similar Questions

A ball is projected from the ground with a speed $15 \,ms ^{-1}$ at an angle $\theta$ with horizontal so that its range and maximum height are equal, then $tan\,\theta$ will be equal to

medium

(JEE MAIN-2022)

The range of the projectile projected at an angle of $15^{\circ}$ with horizontal is $50\,m$. If the projectile is projected with same velocity at an angle of $45^{\circ}$ with horizontal, then its range will be $……..\,m$

medium

(JEE MAIN-2023)

A particle is projected from ground with speed $80 \,m / s$ at angle $30^{\circ}$ with horizontal from ground. The magnitude of average velocity of particle in time interval $t=2 \,s$ to $t=6 \,s$ is ……. $m / s$ [Take $g=10 \,m / s ^2$ ]

hard

A body is thrown at angle $30^{\circ}$ to the horizontal with the velocity of $30\; m / s$. After $1\;sec$, its velocity will be (in $m/s$) $\left(g=10\; m / s ^{2}\right)$

medium

At what angle of elevation, should a projectile be projected with velocity $20 \,ms ^{-1}$, so as to reach a maximum height of $10 \,m$ ?

easy