Ryeth

A trolley of mass of 20kg rolls down an incline from rest. The top of the incline is 10m above the ground. The trolley experiences a constant frictional force of 25N while it rolls down the incline. The velocity attained by the trolley at the bottom of th...

P=mv 20 000=500v Make v the subject of the formula by dividing both sides by 500. 20000÷500=v v= 40m/s