Question

Certain force acting on a 20 kg mass changes its velocity from
5 m s-1 to 2 m s-1 Calculate the work done by the force.
​

Answer 1

Answer:

it's me bro

Explanation:

legend you legend

Answer 2

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