Question

13. Find the velocity of a body of mass 100 g having a kinetic energy of 20 j.​

Answer 1

20=1/2×100×(v)2

20×2/100=(v)2

40/100=(v)2

Answer 2

Answer:

Hii

Here is ur answer ⬇️

Given -

mass(m)= 100g = 0.1kg

K.E. = 20J

velocity = ?

K.E. = 1/2 mv²

20=1/2 0.1 v²

v² = 20×2/0.1

v² = 400

v = 20 m/s

Hope it helps u!