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PhysicsQ&A LibraryThe force of air resistance F (N) on a 0.10 kgmarble dropped from a great height is shown on thegraph below, plotted against the distance fallen x (m).12.o.8(a) calculate the work done *by* gravity on the marble0.6after the first meter of fall0.4l0.2(b) calculate the work done *by* air resistance in the first 5 meters of the fall.(c) Hence calculate the speed of the marble after falling the first 5 meters.Question

Asked Feb 22, 2020

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Step 1

(a) Work done by gravity is,

Step 2

(b) Work done by air resistance is,

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