Home
Class 12
PHYSICS
Two bodies of different masses 2kg and 4...

Two bodies of different masses `2kg` and `4kg` are moving with velocities `2m//s` and `10m//s` towards each other due to mutual gravitational attraction. Then the velocity of the centre of mass is

A

6 m/s

B

Zero

C

5 m/s

D

8 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
The velocity of their centre of mass is zero. Because, there is no external force acting on the system. The gravitational forces of attraction are mutual and hence the C.M. is not affected.
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 3|8 Videos

  • OSCILLATIONS

    MARVEL PUBLICATION|Exercise MCQ|368 Videos

  • SEMICONDUCTORS

    MARVEL PUBLICATION|Exercise MCQs|261 Videos

Similar Questions

Explore conceptually related problems

2 bodies of different masses of 2 kg and 4 kg are moving with velocities 20 m//s and 10 m//s towards each other due to mutual gravitational attraction. What is the velocity of their centre of mass?

Two bodies of masses 2kg and 4 kg are moving with velocities 20 m/s and 10m/s towards each other due to mutual gravitational attraction . What is the velocity of their centre of mass ?

Two bodies of masses 2 kg and 4 kg are moving with velocities 2 m/s and 10 m/s respectively along same direction. Then the velocity of their centre of mass will be

Two particles of mass m_(1) and m_(2) , approach each other due to their mutual gravitational attraction only. Then

Two bodies of masses 1 kg and 2 kg are moving in two perpendicular direction with velocities 1 m//s and 2 m//s as shown in figure. The velocity of the centre of mass (in magnitide) of the system will be :

Two bodies of masses 10 kg and 2 kg are moving with velocities (2 hati - 7 hatj + 3hat k) and (-10 hati + 35 hatj - 3hatk) m//s respectively. Calculate the velocity of their centre of mass.

A body of mass 20 kg is moving with a velocity of 2v and another body of mass 10 kg is moving with velocity V along same direction. The velocity of their centre of mass is