QUESTION 1 15 points Save An Calc?late the force (in N) needed to bring a 1000...

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Answer 1

Answer #1

Net force is given by

F = m*a

m = 1000 kg

a = acceleration

V^2 = U^2 + 2*a*d

d = 115 m

V = 0 m/sec

U = 90 km/hr = 25 m/sec

a = (0^2 - 25^2)/(2*115)

a = -2.717 m/sec^2

So,

F = 1000*2.717 = 2717 N

Answer 2

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