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

Drops of water fall at regular intervals from the roof of a building of height H=16 m. The first drop strikes the ground at the same moment when the fifth drop detaches itself from the roof. The distances between the different drops in air as the first drop reaches the ground are

A
1 m,4 m,7 m,10 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
1 m,3 m,5 m,7 m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
1 m,4 m,9 m,16 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
None of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 1 m,3 m,5 m,7 m

Here, x is the time interval of fall of water drops.

We have, H=16 m
s=12gt2
16=1210.(4x)2
x=15 s or x2=15 s2

Hence the distances of other drops can now be calculated:
At t=3x, h=12g(3x)2
h=0.5×10×95=9 m
Similarly, at t=2x, h=4 m
at t=x, h=1 m


Hence the distances between different drops are 1 m,3 m,5 m,7 m.

flag
Suggest Corrections
thumbs-up
50
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Motion Under Gravity
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon