Question

The brakes of a car are applied when it is moving at 100 km/h and provide a constant deceleration of 10 meters per second per second (m/s2). How far does the car travel before coming to a stop

Answer 1

-38.58m

Step-by-step explanation:

Convert from km/h to m/s.

100km/h → 250/9m/s

Use the formula [ v^2 = -2ax ] to solve the rest.

(250/9)^2 = -2(10)x

62500/81 = -20x

-38.58 ≈ x

Best of Luck!