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## Homework Statement

please advise how to solve. seems i can't without d given, or t!

a man drags a 130 kg object down an inclined plane at a speed of 1.40m/s

The coefficient of friction between the object and the inclined plane is 0.800 and the angle of inclination with the horizontal is 23 degrees. What is the amount of power this man expends in dragging the object?

## Homework Equations

Work = F d

Work = F cos theta d

Power = Work/time

Power = F v

Work = change in kinetic energy

## The Attempt at a Solution

F friction = 0.8 ( mg cos 23) = 95.7N

Power = F.v = 95.7 * 1.4 =134W

but i know this answer is wrong tho, the answer given is 629 W.

please help me get this before my exam! many thx