contestada

While walking up a 6.0-meter-long, 10.0kg ramp with a 12-degree incline, a 60.0kg
person stops 3/4th of the distance up the ramp. (20pts)
a.) What is magnitude of the torque caused by the person using the bottom end of
the ramp as the pivot point?
b.) What is magnitude of the torque caused by the ramp using the bottom end of the
ramp as the pivot point?
c.) What is the supporting force pushing up on the ramp at the top end?
d.) What is the supporting force pushing up on the ramp at the bottom end?