Home
Class 11
PHYSICS
A man of mass 50 kg starts moving on the...

A man of mass 50 kg starts moving on the earth and acquires speed of 1.8 m/s. with what speed does the earth recoil? Mass of earth =`6xx10^24kg.`

Text Solution

Verified by Experts

`m_1v_1=m_2v_2`
`rarr 50xx1.8=6xx10^24xxv_2`
`:. v_2=(50xx1.8)/(6xx10^24)`
`15xx10^-24m/sec`
`=1.5xx10^-23 m/sec`
So, the earth will recoil at a speed of `1.5xx10^-23m/sec`.
Promotional Banner

Similar Questions

Explore conceptually related problems

A man travels 200 km distance with the speed of 40 m/s and next 50 km with the speed of 10 m/s . Find the average speed of man.

What should be the radius of a planet with mass equal to that of earth and escape velocity on its surface is equal to the velocity of light. Given that mass of earth is M=6xx10^(24)kg .

For a ball of mass 0.12 kg and moving with speed of 20 m/s .Calculate de-Broglie wave length.

A car of mass 1200 kg travelling with speed of 60 km/h on a straight road is ahead of a scooter travelling with speed of 60 km/h, then what will the speed of centre of mass of these vehicles? Mass of scooter is 80kg

A rocket is fired vertically with a speed of 5 km s^(-1) from the earth’s surface. How far from the earth does the rocket go before returning to the earth ? Mass of the earth = 6.0 × 10^(24) kg, mean radius of the earth = 6.4 xx 10^(6) m , G = 6.67 xx 10^(-11) " N "m^(2) kg^(-2) .

A satellite moves around the earth in a circular orbit with speed v . If m is the mass of the satellite, its total energy is