Question

Force questions:
9) A giant crane in Washington, D.C. was tested by lifting a 2.232 e6 kg load.

a: find the magnitude of the force needed to lift the load with a net acceleration of 0 m/s/s.
SOLVED: 2.19 e7 N.

b: if the same force is applied to pull the load up a smooth slope that makes a 30° angle with the horizontal, what would be the acceleration?

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11) The largest squash ever grown had a mass of 409 kg. Suppose you want to push a squash with this mass up a smooth ramp that is 6.00 m long and that makes a 30.0° angle with the horizontal. If you push the squash with a force of 2080 N up the incline, what is

a: the net force exerted on the squash?
b: the net acceleration of the squash?
c: the time required for the squash to reach the top of the ramp?

Answer 1

For b, draw a diagram, break down forces into vertical and horizontal components.

Answer 2

You've got the force from part a up the ramp, and a component of gravity down the ramp

Answer 3

The force would be used in part to overcome gravity and in part to accelerate the mass. Must go now. Will return in two hours.

Answer 4

Alright, thanks @agent0smith and @douglaswinslowcooper ! (:

Answer 5

You are welcome.