Question

Ajay applied a certain force on a cart of mass 30kg to change its velocity from 2m's to 5ms​

Answer 1

Explanation:

Given : Initial velocity u=5 m/s

Final velocity v=2 m/s

The work done is equal to the change in the kinetic energy of an object.

W=

2

1

m(v

2

−u

2

)

W=

2

1

×20×(2

2

−5

2

)

⟹W=−210 J

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