Question

A body of mass 50 kg has a momentum of 1000 kg m per second calculate it's k.e.

Answer 1

K. E. =p^2/2m

1000^2/2*50

1000000/100

10000 J

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Answer 2

Answer: 10,000  joule

Explanation:mass of body =50kg

Momentum of body(p) = 1000 kg/m

We know that,

P=mv

1000 = 50×v

V=20m/a

K.E  = 1/2mv^2

K.E = 1/2×50×(20)^2

K.E = 1/2×50×400

K.E = 10,000 joule