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Standard XII

Physics

Relative Velocity

A train moves...

Question

A train moves in north direction with a speed of $54 k m / h$ . A monkey is running on the roof of the train, against its motion with a velocity of $18 k m / h .$ with respect to train. The velocity of monkey as observed by a man standing on the ground facing towards monkey is :

5 m / s

due south

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25 m / s

due south

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10 m / s

due south

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10 m / s

due north

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Solution

The correct option is B $10 m / s$ due south
Velocity of train $v_{t} = 15 m / s$
Velocity of monkey with respect to train $v_{m t} = - 5 m / s$
Velocity of monkey $v_{m} = v_{m t} + v_{t} = 15 - 5 = 10 m / s$ due south

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Similar questions

Q. To parallel rail track an north south. Train

A

moves north with a speed of

54 k m / h

and train

B

moves south with a speed of

90 k m / h

. What is the
Velocity of

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with respect to capital

A

?
Velocity of ground with respect to

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Velocity of monkey running on the roof of train

A

against its motion with a velocity of

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with respect to the train

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as observe by man standing on the ground?

Two parallel rail tracks run north-south. Train A moves north with a speed of 54 km/h and train B moves south with a speed of 90 km/hr. What is the velocity of a monkey running on the roof of the train A against its motion (with its velocity of 18 km/h with respect to the train A) as observed by a man standing on the ground?

Q. Two parallel railway track run north-south. Train A moves to north with a speed of 54

k m h^{- 1}

and train B moves to south with a speed of

90 k m h^{- 1}

A monkey is running on the roof of train A against its motion with a velocity of 1 8

k m h^{- 1}

as obtained by a person standing on the ground

.

Train 'A' moves north with a speed of $54 k m / h r$ and a monkey is running on its roof at a speed of $18 k m / h r$ in opposite direction. The speed of the monkey with respect to ground in $m / s$ is

Q. what is the velocity of a monkey running on the roof of the train A ( moving with velocity

54 k h / h r

) against its motion with a velocity of 18 km

h^{- 1}

with respect to the train A as observed by a man standing on the ground?

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A train moves in north direction with a speed of 54 km/h. A monkey is running on the roof of the train, against its motion with a velocity of 18 km/h. with respect to train. The velocity of monkey as observed by a man standing on the ground facing towards monkey is :

The correct option is B 10 m/s due southVelocity of train vt=15m/sVelocity of monkey with respect to train vmt=−5m/sVelocity of monkey vm=vmt+vt=15−5=10m/s due south

A train moves in north direction with a speed of $54 k m / h$ . A monkey is running on the roof of the train, against its motion with a velocity of $18 k m / h .$ with respect to train. The velocity of monkey as observed by a man standing on the ground facing towards monkey is :

The correct option is B $10 m / s$ due south
Velocity of train $v_{t} = 15 m / s$
Velocity of monkey with respect to train $v_{m t} = - 5 m / s$
Velocity of monkey $v_{m} = v_{m t} + v_{t} = 15 - 5 = 10 m / s$ due south