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A disc of radius 2 m and mass 100kg roll...

A disc of radius 2 m and mass 100kg rolls on a horizontal floor, its centre of mass has speed of `20 cm//s`. How much work is needed to stop it ?

A

30 kJ

B

2 J

C

1 J

D

3 J

Text Solution

Verified by Experts

The correct Answer is:
D
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