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

A particle describes a horizontal circle on the smooth surface of an inverted cone. The height of the plane of the circle above the vertex is 9.8 cm. Find the speed of the particle.

A
0.98 m/s1
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1.96m/s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
0.49m/s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
3.92m/s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 0.98 m/s1
From geometry of figure-
Rsinθ=mg1
Rcosθ=mv2r2
On dividing equation 1 by 2-
tanθ=grv2
rh=grv2
v=gh
v=9.8×9.8×102
v=0.98m/s

1008854_1021663_ans_5c32476b4fa24e919da3679729404883.png

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Volume of Solids
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon