Question
Asked Feb 22, 2020
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The force of air resistance F (N) on a 0.10 kg
marble dropped from a great height is shown on the
graph below, plotted against the distance fallen x (m).
12.
o.8
(a) calculate the work done *by* gravity on the marble
0.6
after the first meter of fall
0.4
l0.2
(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.
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The force of air resistance F (N) on a 0.10 kg marble dropped from a great height is shown on the graph below, plotted against the distance fallen x (m). 12. o.8 (a) calculate the work done *by* gravity on the marble 0.6 after the first meter of fall 0.4 l0.2 (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.

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Expert Answer

Step 1

(a) Work done by gravity is,

Physics homework question answer, step 1, image 1

Step 2

(b) Work done by air resistance is,

Physics homework question answer, step 2, image 1

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