Question

a body of mass 25g has a momentum of 0.40kgm . find its kinetic energy ​

Answer 1

M×V = 0.40

25/1000× V = 0.40

SO, V= 16m/s.

afterthat,

k.E = 1/2 × 25/1000×16×16

= 16/5 joule.

I hope this is the right and,keep learning✌and sorry for the previous wrong one.

Answer 2

Answer:

GIVEN:-

momentum of body = 0.40 kgm

mass of body= 25 gm

FORMULA USED:-

• momentum= mass×velocity.

• kinetic energy =
• $1 \div 2mv {}^{2}$

PROCEDURE:-

• Firstly, find out the velocity by the using of formula of momentum.

• than put the value of velocity into the formula of k.E.

SOLUTION:-

M×V = 0.40

25/1000× V = 0.40

SO, V= 16m/s.

afterthat,

k.E = 1/2 × 25/1000×16×16

= 16/5 joule.