Question

A bus travels 50 km south for 30 minutes and stops for 15 minutes. then it travels 20 km for 15 minutes. what is the average velocity of the bus for its total trip? 90km/hr 93 km/hr 70 km/hr 35 km/hr

Answer 1

The average velocity of the bus is 70 km/hr.

Step-by-step explanation:

The average velocity of an object is ratio of net displacement to the total time taken.

Average velocity=
`(Net displacement)/(Total time taken)`

Net displacement, D = 50 + 20 = 70 km

Total time taken to cover this displacement,

T = 30 min + 15 min +30 min + 15 min = 1 hour

Substituting the values,

Average velocity=
`(70)/(1)` = 70 km/hr