Question

A car travels at a uniform speed of 30 kmph for 30 minutes and then at a speed
of 60 kmph for next 30 minutes.

Calculate the average velocity of the car.

(a) 90kmph
(b) 45kmph
(c) 60kmph
(d) 70kmph​

Answer 1

Answer:

b

Explanation:

distance: 30*0.5+60*0.5=45

time: 0.5+0.5=1

speed: 45/1=45