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How much force is needed to bring a 3200 lb car from rest to a velocity of 44ftsec in 8 sec?
Wiki User
∙ 14y ago
How much force is needed to bring a 3200 lb car from rest to a velocity of 44ftsec in 8 sec?
a = (vf - Vi)/time
a = (0 - 44)/ 8
a = -5.5 m/s^2
F = m * a
Since the weight is given in pounds, gravity = 32.2 m/s^2
W = m*g
3200 = m * 32.2
m = 99.4 Slugs
At least that is what we used to call mass in the English system
F =99.4 * -5.5
F = -546.7 lbs.
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∙ 14y ago
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