A man pushes a box of 50 kg with a force of 80 Newton. What will be the acceleration of the box when its weight is halved?
mass m = 50 kg
Force F = 80 N
If f = ma
a = F / m = 80 / 50 = 1.6 m/s2
If mass is doubled 50 x 2 = 100
a = F / m = 80 / 100 = 0.8 m/s2