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

An object, moving with a speed 6.25 ms1, is decelerated at a rate given by dvdt=2.5v where v is intantaneous velocity. The time taken by the object to come to rest would be:

A
2 s
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
4 s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
8 s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1 s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 2 s
dvdt=2.5v

dvv=2.5dt

06.25v1/2dv=2.5t0dt

2.5[t]t0=[2v1/2]06.25

t=2s
dvdt=2.5v

06.25V1/2dv=2.5t0dt

2.5[t]t0=[2v1/2]06.25

t=2seconds

Hence (A) option is corrcet


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