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

A body projected horizontally with an acceleration of g m/s2 from a height h reaches the ground with a vertical velocity of 3 km/hr, Another body was dropped from the same height h with an initial speed 4 km/hr , At what velocity will the body reach when it reaches the ground?

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

The correct option is C 5 km/hr
Vertical velocity will be energy gained due to acceleration of gravity. So same effect will be on the secomd body in vertical direction so conserving energy for second body vf=42+32. So final velocity will be 5m/s.

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