Question

find the velocity of body of mass 100 gram having a kinetic energy of 20 J

Answer 1

hey here is your answer
K.E=1/2mv^2
mass=100g
so in kg
100/1000
20=1/2*100/1000*v^2
20=50/1000*v^2
20*1000/50=v^2
400=v^2
v=20m/s
HOPE IT HELPS

Answer 2

m=100

k.E=20J

k.e=1/2mv*2

v=