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

Three blocks a, b and c of masses 10 kg, 10 kg and 20 kg respectively are arranged as shown in figure. All the surfaces are frictionless and string is inextensible. A constant force F=20 N is applied on block a as shown. Pulley and string are light. Part of the string connecting both pulleys is vertical and part of the strings connecting pulleys with masses a and b are horizontal. Choose the correct option(s) for the given system.


A
Acceleration of block b is 0.5 m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Acceleration of block b is 1 m/s2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Tension in the string is 10 N
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Acceleration of block c is 0.5 m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C Tension in the string is 10 N
Block c will remain stationary because external forces on it balance each other. Hence block c won't accelerate.

Due to string constraint,
Acceleration of a = acceleration of b
=Fma+mb=2010+10=1 m/s2
Tension, T=mb× (acceleration of b)
T=(10)(1)=10 N

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
All Strings Attached
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon