A force acting on a body in empty space

increases at a constant rate from zero. The

body has a mass of 10 kg, and after 4 seconds

the force is 50 N.

What is the speed of the object at 4 sec-

onds?

increases at a constant rate from zero. The

body has a mass of 10 kg, and after 4 seconds

the force is 50 N.

What is the speed of the object at 4 sec-

onds?