Suppose a 2 kg object is falling through the air and accelerating downwards at 8 m/s2. Taking g = 10 m/s2 What is the magnitude and direction of the force of air resistance on it?
2N downward |
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2N upward |
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1N downward |
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1N upward |
Fnet=ma
air resistance R will exert upward and gravity will exert downward
R-mg= -ma
R=m(g-a)
R=2*2 =4N
upward
b should be correct if a=9m/m^2
Suppose a 2 kg object is falling through the air and accelerating downwards at 8 m/s2....
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