Question

A body of mass 2 kg is projected with an initial velocity of 5ms along a rough horizontal table.
The work done on the body by the frictional forces before it is brought to rest is???

Answer 1

Answer:

25J

Work done by frictional force

=Δ(K.E)

=

2

1

m(v

2

−u

2

)

=

2

1

×2×−25

=−25J

Explanation:

I hope you understand