A ball of mass 0.5 kg is dropped from height of 10 m . height, at which magnitude of velocity become

English

Gujarati

Hindi

2.Motion in Straight Line

medium

A ball of mass $0.5 \; kg$ is dropped from the height of $10 \; m$. The height, at which the magnitude of velocity becomes equal to the magnitude of acceleration due to gravity, is $\dots \; m$. (Use $g =10 \; m / s ^{2}$).

A

$1$

B

$3$

C

$5$

D

$7$

(JEE MAIN-2022)

Solution

$v^{2}=u^{2}+2 a s$

$100=0+2(10) \,s$

$s=5\, m$

Height from ground $=10-5=5 \,m$

Standard 11

Physics

Share

Similar Questions

A body, thrown upwards with some velocity reaches the maximum height of $50 m$. Another body with double the mass thrown up with double the initial velocity will reach a maximum height of $……….\,m$

easy

A body freely falling from the rest has a velocity $‘v’$ after it falls through a height $‘h’$. The distance it has to fall down for its velocity to become double, is

hard

When a ball is thrown up vertically with velocity ${V_o}$, it reaches a maximum height of '$h$'. If one wishes to triple the maximum height then the ball should be thrown with velocity

medium

(AIIMS-2005)

A person sitting in the ground floor of a building notices through the window, of height $1.5 \;m ,$ a ball dropped from the roof of the building crosses the window in $0.1 \;s$. What is the velocity (In $m/s$) of the ball when it is at the topmost point of the window $?\left( g =10\, m / s ^{2}\right)$

medium

(NEET-2020)

A ball is thrown vertically upwards from the top of a tower with a velocity $u$. This ball reaches the ground level with a velocity $4\,u$. The height of the tower is

medium