Question

find the mass of a body which has 5 jewels of kinetic energy while moving at a speed of 2 metres per second ​

Answer 1

Answer:

K. E. = 1/2 mv²

Explanation:

5= 1/2 m ×4

5/2= m

2.5g = m

Answer 2

Answer:

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Explanation:

hey mate !!!

answer :-

kinetic energy = 5J ,v+2m/s

K.E.=1/2mv²

5=1/2m×2²

5=2m

m=5/2

m=2.5 kg