Question

A car is moving along a straight hoghway with speed 126km/h is brought to a halt within a distamce of 200m. What is the retardation of the car

Answer 1

Answer:

GIVEN,

• v = 0

• u = 126 km/h = 35 ms⁻¹

• s = 200 m

we've

v² = u² + 2as

0² = 35² + 2 x a x 200

0 = 1225 + 400a

-1225 = 400a

-1225/400 = a

-3.0625 = a