wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

​​​​​​A car moves at constant speed of 60km/hr for 1km and 40km/hr for next 1km. What is the average speed of the car?

Open in App
Solution

For 1st Km

Given - speed = 60 km/hr and distance = 1 km

Time = distance/speed = 1/60 Km/hr

For next 1 Km

Given - speed = 40 km/hr and distance = 1 km

Time = distance/speed = 1/40 Km/hr

Average Speed = Total Distance / Total Time

= (1 + 1) / (1/60 + 1/40)

= 2 * 2400/100

= 48 Km/hr

Answer - The average speed of the car is 48 Km/hr

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Speed and Velocity
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon