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The video only states the distance=25m, time 1 min 15 sec and weight 97000 lbs V

ID: 1655492 • Letter: T

Question

The video only states the distance=25m, time 1 min 15 sec and weight 97000 lbs

Video clip from 2009 World's Strongest Man competition-Plane Pull https: //www.youtube.com/watch?v-nlGDv607u9U Use the data from the video and assume that the plane's acceleration is constant. Calculate the net force acting on the plane. One of the announcers says: "It's hard to imagine how a human can pull such a colossal object." Use Newton's laws to explain how a human can pull such a colossal object. (44 tonnes = 44,000 kg. Weight almostequalto 97,000 lbs.)

Explanation / Answer

D = 25m

time t = 1m 15s = 75s

Weight w = 97000 lbs = 431650 N

mass m = w/g = 431650/9.81 = 44001 kg

We know, F = ma

Now, a = v/t = (D/t)/t = D/t^2

So,

F = mD/t^2 = (44001)(25)/75)^2 = 195.56 N