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bungouk
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Homework Statement
Hi all please could you take a look at this question and help me
1) A packing case weighing 1000N is loaded onto the back of a lorry by being dragged up an incline of 1 in 5 at a steady speed of 2m/s. the frictional resistance to motion is 240N, Calculate:
a. The power required to overcome friction
b. The power needed to overcome gravity
c. The total power needed
The problem I have is i don't know what i need to do to the incline.
Please could someone guide me
Homework Equations
Power needed to overcome friction = friction force * velocity along surface
The Attempt at a Solution
Part a.
Power needed to overcome friction = friction force * velocity along surface
Power needed to overcome force = 240N * 2m/s = 480N
Therefore power need is 480N to overcome the friction.
Now not sure if part a is correct also I'm stuck with part b. i don't know what to do now