A particle is thrown vertically upwards with a velocity of 4,ms^{-1} . ratio of its accelerations af

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2.Motion in Straight Line

easy

A particle is thrown vertically upwards with a velocity of $4\,ms^{-1}$. The ratio of its accelerations after $1\,s$ and $2\,s$ of its motion is

$2$

$9.8$

$1$

$4.9$

(AIIMS-2009)

Solution

We know that the acceleration in a motion under gravity is constant which is $9.8\, ms^{-2}$. Hence, the required ratio will be $\frac{{9.8}}{{9.8}} = 1$

Standard 11

Physics

A ball is thrown vertically downward with a velocity of $20\; m / s$ from the top of a tower. It hits the ground after some time with a velocity of $80\, m / s$. The helght of the tower is $……m$ : $\left( g =10\, m / s ^{2}\right)$

easy

(NEET-2020)

A balloon is rising vertically up with a velocity of $29 \,ms^{-1}$. A stone is dropped from it and it reaches the ground in $10$ seconds. The height of the balloon when the stone was dropped from it is………..$m$ ($g = 9.8\,m/{s^2}$)

medium

A body is thrown vertically upwards. Which one of the following graphs correctly represent the velocity vs time?

medium

(JEE MAIN-2017)

Two balls $A$ and $B$ are thrown with same velocity $u$ from the top of a tower. Ball $A$ is thrown vertically upwards and the ball $B$ is thrown vertically downwards.Choose the correct statement

medium

A particle is projected up with an initial velocity of $80\;ft/\sec $. The ball will be at a height of $96\;ft$ from the ground after

medium

A particle is thrown vertically upwards with a velocity of $4\,ms^{-1}$. The ratio of its accelerations after $1\,s$ and $2\,s$ of its motion is

Solution

Similar Questions

A ball is thrown vertically downward with a velocity of $20\; m / s$ from the top of a tower. It hits the ground after some time with a velocity of $80\, m / s$. The helght of the tower is $……m$ : $\left( g =10\, m / s ^{2}\right)$

A balloon is rising vertically up with a velocity of $29 \,ms^{-1}$. A stone is dropped from it and it reaches the ground in $10$ seconds. The height of the balloon when the stone was dropped from it is………..$m$ ($g = 9.8\,m/{s^2}$)

A body is thrown vertically upwards. Which one of the following graphs correctly represent the velocity vs time?

Two balls $A$ and $B$ are thrown with same velocity $u$ from the top of a tower. Ball $A$ is thrown vertically upwards and the ball $B$ is thrown vertically downwards.Choose the correct statement

A particle is projected up with an initial velocity of $80\;ft/\sec $. The ball will be at a height of $96\;ft$ from the ground after

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