Question

if mass = 100 kg , k .e = 20 J then velocity​

Answer 1

Answer:

e=mcsquare

where e=20

m=100

take out c that is the the value of speed

Answer 2

Answer:

K.E. = 1/2 M V^2

20 = 50 x V^2

V = $\sqrt{\frac{2}{5} }$

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