wiz-icon
MyQuestionIcon
MyQuestionIcon
9
You visited us 9 times! Enjoying our articles? Unlock Full Access!
Question

In the figure shown, find the force exerted by the pulley at the support. Take g=10 m/s2 and assume that all surfaces are smooth.

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

The correct option is C 212 N
a=Supporting ForceTotal mass=3g10=3 m/s2

T=7a=7×3=21 N
Since the tensions act tangentially at the pulley while force at the support makes equal angle with both the tensions i.e. 45
Therefore, force exerted by the pulley at the support,
Fcos45=T
F=212 N

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
What's with All the Tension in the Room?
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon