Two bodies A and B having masses m and 4m respectively

• GP Work Energy

Two bodies A and B having masses m and 4m respectively are moving with equal linear momentum. The ratio of kinetic energies between A and B is

1. 1 : 2
2. 1 : 1
3. 4 : 1
4. 1 : 4

Answer

p = mv

KE = ½mv² = ½p²/m

KE is inversely proportional to the mass of the body.

The correct option is C.