Question

A car in a national highways starts after a pit stop and attains a speed of 40 kilometre per hour in 10 minutes. Find it rate of acceleration?
Please tell fast and have my
exam tomorrow.. pls

Answer 1

Answer:

Acceleration of the car is 0.0185 m/s²

Explanation:

The car starts from zero

The initial speed of the car = 0

Final speed of the car = 40 km/hr = 40 × 1000/3600 m/s = 100/9 m/s

Time interval = 10 minutes = 10 × 60 = 600 seconds

Acceleration of the car = (Final speed - Initial speed)/time

                                       = (100/9) × (1/600)

                                      = 1/54 m/s² = 0.0185 m/s²

Hope this helps.