Question

Calculate the kinetic energy of a body of mass 1.0Kg and momentum 25Kgm/s. 

412.5J

312.5J

212.5J​

Answer 1

Answer:

Given,

Mass, m=3kg

Momentum, P=mv

Velocity, v=

m

P

=

3

2

ms

−1

Kinetic energy,

2

1

mv

2

=

2

1

×3×(

3

2

)

2

=

3

2

J

Hence, kinetic energy is

3

2

J