Question

Rahul is travelling in a car from Trichy to tanjore. Initially his car was travelling in uniform
speed, the after some time speed was increasing and decreasing as he covered a total distance of
120 m 4 hours
a.How will you help Rahul to calculate the average speed in km/h
b.Also calculate the average speed in m/s.​

Answer 1

Answer:

Average speed = Total distance / total time

= 120 km / 4 hours = 30 km/h

(distance should be 120 km instead of 120 m)

Average speed in m/s = 30 X 1000/3600

8.33 m/s

1 km = 1000 m

1 hour = 3600 s