Aperson is pushing a wheelbarrow along a ramp that makes an angle α = 33.0° with the horizontal. the wheelbarrow and load have a combined mass of 23.65 kg with the center of mass at the midpoint of the length l. what is the total force the person must apply so that the wheelbarrow remains horizontal on that ramp?

Explanation:

Since the wheelbarrow is maintained at horizontal position

so we can use Torque balance equation

Now force balance in Y direction we have

Now force balance in x direction we have

Now net force exerted by the person

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.