CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A projectile is fired vertically from the Earth with a velocity kve where ve is the escape velocity and k is a constant less than unity. The maximum height to which projectile rises, as measured from the centre of Earth, is

A
Rk
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Rk1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
R1k2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
R1+k2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D R1k2
Applying conservation of energy principle, we get
12mk2v2eGMmR=GMmr
12mk22GMRGMmR=GMmr
k2R1R=1r1r=1Rk2R
1r=1R(1k2)r=R1k2

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