Question

A car initially at rest undergoes uniform acceleration for 6.32 seconds and covers a distance of 120 meters. What is the approximate acceleration of the car?

Answer 1

v = u+at :initial velocity(u) = zero
hence,
v = at :eq1
we also know that:
v^2 = u^2+2as :initial velocity(u) = zero
v^2 = 2as :eq2
(at)^2 = 2as :v = at eq1.
a = 2s/t^2 = 6m/s^2

Answer 2

A.5 meters/second2
B.6 meters/second2
C.9 meters/second2
D.12 meters/second2
E.37 meters/second2