Question

>>>>can anyone give me the<<<<<

>>>>>Give reasons also <<<<<<
>>>>>only correct answer<<<<<<

Answer 1

as we know KE =1/2MV²
SO,,given ke=20j m=100g=0.1kg
hence using formula v=20m/s

Answer 2

K.E. = 1/2 m v^2
20J = 1/2 ×0.100 × v^2
20 = 0.05 × v^2
20/0.05 = v^2
400 = v^2
20 m/s = v


correct option is 2) 20 m/s