Aforce of 300N is necessary to slide a 50 kg mass up an inclined plane.
a)calculate the actual mechanical advantage of this inclined plane.
b)if the ramp is 2.om long and 1m high calciulate the efficienyof this machine.
:confused:

If you were to lift the mass directly vertically, you'll need a force of 500N (through F=ma, and taking a as 10m/s^2)

However, with the inclined plane you only need 300. You can get the mechanical advantage now?

Then, for the part b, have a drawing. Find the component of parallel to the plane.

Efficiency = Output / Input

Hope it helped. :) Post back if you have any difficulties.