Question

A bus accelerates uniformly from 54 km/h to 72km/h in 10 seconds Calculate acceleration.

Answer 1

Answer:

0.5 m/s²

Explanation:

Given,  

• Initial velocity, u = 72 km/h = 72 (5/18) m/s = 20 m/s

• Final velocity, v = 54 km/h = 54 (5/18) m/s = 15 m/s

• Time, t = 10 seconds

 

• Acceleration:

a = (v – u)/t

a = (20-15)/10

a = 0.5 m/s²