Question

A loaded garbage truck has low acceleration. It takes 10 seconds to go from 0 km/h to 100 km/h. What is the acceleration of the garbage truck? How much slower is the acceleration of the garbage truck compared to the acceleration of the sports car in Figure 4.18?

Answer 1

|acceleration| = (change in speed) / (time for the change)

Change in speed = (end speed) - (start speed) = (100 - 0) = 100 km/hr

Acceleration = (100 km/hr) x (1 hr / 3,600 sec) x (1,000 m/km) / (10 sec) =

(100 x 1,000) / (3,600 x 10) (m/s²) = (2 and 7/9) m/s²