A person in a wheel chair is moving up a ramp at a constant speed. Their total weight is 900N. The ramp makes an angle of 10degrees to the horizon. Calculate the force required to keep the wheel chair moving at constant speed up the ramp. (You may ignore the effects of friction) The ramp is 5m long. Calculate the power exerted by the person in the wheel chair if it takes her 10s to travel up the ramp. Here is what i have done - I used the SINE Rule to find the inclined height of the ramp, i found it to be .87m. - Power = work/time.