Question

Toon Train is traveling at the speed of 10 m/s at the top of a hill. Five seconds later it reaches the bottom of the hill and is moving at 30 m/s. What is the rate of acceleration of Toon Train?

Answer 1

4 m/s²

Step-by-step explanation:

30 m/s - 10 m/s = 20 m/s ÷ 5 s = 4 m/s2

Answer 2

the rate of acceleration of the train is 4 m/s²

Step-by-step explanation:

Given;

initial velocity of the train, u = 10 m/s

change in time of motion, dt = 5 s

final velocity of the train, v = 30 m/s

The rate of acceleration of the train is calculated as;

`a = (dv)/(dt) = (v-u)/(dt) = (30-10)/(5) = (20)/(5) = 4 \ m/s^2`

Therefore, the rate of acceleration of the train is 4 m/s²