Q5.6 To push a box up a ramp, which requires less force: pushing horizontally or pushing parallel to the ramp? Why?

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Nelly StrackeLv2

21 Oct 2018

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Before the invention of the electric refrigerator in 1913, people kept their food cool with blocks of ice in the home. (a) Calculate the work needed to lift a block of ice a vertical distance of . (b) What does the block have? (c) When the same block of ice is raised the same vertical distance by pushing it up a ramp, only of force is required. Calculate the work done to push the block up the ramp. (d) What does it have? (e) Draw a sketch of the ramp and determine the Mechanical Advantage of the ramp.

tanherring380

Chadwick needs to push the piano up a ramp and into a moving van. Is Chadwick strong enough to push the piano up the ramp alone or must he get help? Estimate the force needed to push the piano up the ramp. Neglect friction.

Part D

Determine the object of interest for this situation.

For this situation, you should draw a free-body diagram for_ _ _ _ _ _ _

a) Chadwick

b) the piano

c) the ramp