A constant retarding force of 20 N acts on a body of mass 5 kg moving initially with a speed of 10 ms^(-1). How long does the body take to stop ?

A constant retarding force of 20 N acts on a body of mass 5 kg moving

1.	A constant retarding force of 20 N acts on a body of mass 5 kg moving initially with a speed of 10 ms^(-1). How long does the body take to stop ?
Answer» 1.5 s 2.5 s 3.5 s 4.5 s Answer :B