Question

A motorist travels 150 km at 70 km/h and 130 km at 90 km/h. What is the average speed of the motorist for this trip?

Answer 1

Answer:

average speed = total distance taken /total time taken

70 + 90 km/hr = 150 + 130 / time taken

time = distance /average seed

= 280 / 160

= 1. 75 minute

average speed = 70km/h + 90 km/hr

= 160km/hr

hope May it be helpful

Answer 2

Answer:

78.75 km/h

Explanation:

always remember tha

if average velocity = v

if you want to convert the average velocity in the m/s

the just multiply velocity by 5/18

78.75 x (5/18)