Question

A train accelerates from 36 km h to 54 km h in 10 sec. Find acceleration

Answer 1

Answer:

The acceleration is 0.5 m/s^2

Explanation:

The formula for acceleration is:

Increased Velocity - Starting Velocity / Time

= 54 km/h - 36 km/h / 10 sec

= 18 km/h / 10 sec

As the time is in seconds, the speed should be in m/s.

18 Km/h = 18 Km/3600 sec = 18000 m/ 3600 sec = 18000/3600 m/s = 5 m/s

= 5 m/s /10 sec = 0.5 m/s/s or 0.5 m/s^2

The car increases its speed 0.5 m/s every second