Mechanics 2 work done
Original post by Bobby21231
Hello can someone help me with the top question, thanks
You need to find the component of the force that acts along the slope. Do you have a diagram?
Original post by notnek
You need to find the component of the force that acts along the slope. Do you have a diagram?
Here's my diagram I'm confused because there's two angles
Original post by Bobby21231
Here's my diagram I'm confused because there's two angles
Work done = Fs cos (theta) = 20 X 3 X cos 20.
Original post by tangotangopapa2
Work done = Fs cos (theta) = 20 X 3 X cos 20.
Ok thanks do I just ignore the weight
Original post by Bobby21231
Ok thanks do I just ignore the weight
Yes. You're asked to find the work done by the pulling force - the weight is not relevant.
Original post by notnek
Yes. You're asked to find the work done by the pulling force - the weight is not relevant.
Ok thankyou
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