Question

An object of 1 kg mass has a momentum of 10 kg
m/sec then the kinetic energy of the object will be
(a) 100 J (b) 50 J
(c) 1000 J (d) 200 J

Answer 1

Answer:

b

Explanation:

Answer 2

Answer:

The kinetic energy is 50J..

Explanation:

We know mv=10kgm/s (momentum)

Given the mass (m) is 1kg

So v =10m/s.

We know kinetic energy is

1/2m×v^2

1/2×1×100=>50J

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