If you have ever driven a sports car and a minivan you know that they don't accelerate the same. What force would it take to accelerate a 609.68 kg sports car from 0 to 60 mph in 4.75 seconds?
Using 1st kinematic equation:
V = U + a*t
a = acceleration of sports car = (V - U)/t
U = initial speed = 0 m/sec
V = final speed = 60 mph = 60 miles/hr = (60 miles/hr)*(1609.34 m/1 miles)*(1 hr/3600 sec) = 26.82 m/sec
t = time taken = 4.75 sec
So,
a = (26.82 - 0)/4.75
a = 5.65 m/sec^2
Now from Newton's 2nd law:
Fnet = m*a
m = mass of sports car = 609.68 kg
Fnet = net force required to accelerate = 609.68*5.65
Fnet = 3444.7 N
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