A car of mass 800kg moves from rest on a horizontal track and travels 60m in 20s with uniform acceleration. Assuming there were no frictional forces, calculate the accelerating force
a
240.0N
b
800.0N
c
1600.00N
d
2400.0N
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richardsuccess098
1 year ago
S = at + 12at2
60 = 0 x 20 + 12
x a x 20
a = 310
m/s2
F = ma = 800 x 310=240N
How is ½at² =½*a*20
When t=20
