Question

A sack of potatoes weighing 13.1-kg falls from a very tall building. At a certain point at the motion downwards, its measured acceleration is 3.7 m/s2 and its velocity is 70.4 m/s. Assuming that the magnitude of the drag force due to air resistance is proportional to the square of its speed, What is its terminal speed?

Select one: a. 89.20 m/s b. 70.40 m/s c. 10.63 m/s d. The sack keeps accelerating until it reaches the bottom

Answer #1

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m/s
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m
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ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
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bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
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5:
The graph shows the ?-directed force
??...

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