Question

a racing car ,initially at rest ,picks up a velocity of 180km/h in 4.5 s.calculate i)acceleration ii)distance covered by a car.

Answer 1

v = u + at
180 = 0 + a × 4.5
a = 180 /4.5
= 40 m/s2
S = ut + 1/2 at2
= 1/2 × 40 × 4.5 × 4.5
=