Question

A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?

Answer 1

m= 4kg
v= ?
momentum = Mv
so
12kgms-¹ = 4kg×v
v= 12÷4 = 3ms-¹

Answer 2

momentum= 12kgm/s
mass=4 kg
so,speed=momentum/mass=12/4=3m/s