You visited us 3 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Physics

Average Speed and Average Velocity

Himanshu went...

Question

Himanshu went out for a long drive on a weekend. From $10 : 00 PM$ to $11 : 00 PM$ , he drove at $40 kmph$ , and from $11 : 00 PM$ to $12 : 00 AM$ at $50 kmph$ . Select the graph that represents his motion correctly.

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

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

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

Open in App

Solution

The correct option is B
The more the steep the slope of the distance-time graph, the higher the speed is. Himanshu drove the car at $40 kmph$ , and then increased the speed to $50 kmph$ . So, the slope would be constant until $40 kmph$ , and then it deviates to $50 kmph$ . Using this information, we can say that the graph would like this:

Suggest Corrections

Similar questions

Q. Himanshu went out for a long drive on a weekend. From

10 : 00 PM

11 : 00 PM

, he drove at

40 km/h

and from

11 : 00 PM

12 : 00 AM

, at

50 km/h

.

Select the graph that represents his motion correctly.

On a weekend Himanshu went out on a long drive. From 10:00 PM to 11:00 PM he drove at 40 km/h and from 11:00 PM to 12 midnight at 50 km/h. Using the formula for speed, calculate the average speed of Himanshu from 10:00 PM to 12 midnight?

Q. Elijah, an astrophysicist, was observing the celestial bodies in the night sky. He made three observations and noted down the time of the observations. His observations were made at 7:00pm, 9:30pm and 11:20pm. He needs to know by what angle the Earth had rotated by the time he made his 2nd and 3rd observations relative to his 1st observation. Can you help him out?

Q. From 10:00 PM to 11:00 PM, a person drove at

40 k m / h

and from 11:00 PM to 12 midnight at

50 k m / h

. What is his average speed in the time interval 10 PM to 12 AM?

Q. Velocity of a particle varies as -

v = 2 t^{3} - 3 t^{2}

k m / h r

; t = 0

is taken at

12 : 00

noon, t is in hr
Find the time between

12 : 00

noon and

1 : 00 p m

at which speed is maximum.

Join BYJU'S Learning Program

Himanshu went out for a long drive on a weekend. From 10:00 PM to 11:00 PM, he drove at 40 kmph, and from 11:00 PM to 12:00 AM at 50 kmph. Select the graph that represents his motion correctly.

Himanshu went out for a long drive on a weekend. From $10 : 00 PM$ to $11 : 00 PM$ , he drove at $40 kmph$ , and from $11 : 00 PM$ to $12 : 00 AM$ at $50 kmph$ . Select the graph that represents his motion correctly.