MyQuestionIcon

4

You visited us 4 times! Enjoying our articles? Unlock Full Access!

Non Uniform Motion & Avg Velocity

A train has a...

Question

A train has a speed of 60 km/h for the first one hour and 40 km/h for the next half hour. Its average speed in km/h is

A

50

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

53.33

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

48

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

70

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
53.33

Distance travelled by train in first 1 hour is 60 km and distance in next $\frac{1}{2}$ hour is 20 km.

$v_{a v g} = \frac{60 + 20}{1.5}$

$= 53.33$

Suggest Corrections

thumbs-up

1

Similar questions

A train has a speed of 60 km/h for the first one hour and 40 km/h for the next half hour. Its average speed in km/h is

Q. A car covers 20 km in first hour of its journey, 40 km in next hour and 30 km in third hour. Calculate its average speed.

Q. On a 100 km track ,a train travels the first 30km at a uniform speed of 30km per hour. How fast must the train travel the next 70km so as to average 40km per hour for the entire trip

Q. A train travels from one station to another at a speed of 40 km/hour and returns to the first station at the speed of 60 km/hour. Calculate the average speed and average velocity of the train.

Q. A car moves with

60 k m / h

in first one hour and with

80 k m / h

in next half an hour. Find average speed of car in total

1.5

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

PHYSICS

Watch in App

explore_more_icon

Explore more

Non Uniform Motion & Avg Velocity

Standard XI Physics

Join BYJU'S Learning Program

CrossIcon