Question

Find the movementam of a body of mass 100 grams have the kinetic energy 20 joule

Answer 1

Answer:

2 kgm/s

Explanation:

KE=1/2mv²

  =1/2×P×v

P²=2mK

here,

mass=100 g

        =0.1 kg

k=20 J

P²=2mK

   =2×0.1×20

   =0.2×20

   =4

P=√4

 =2 kgm/s

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