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

# In the system shown in figure mA=4kg,m8=3kg and mc=8kg. Friction is absent everywhere. A string is light and inextensible. If the system is released from rest find the acceleration of block B

A
g8
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
B
g2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
g4
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
D
g
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
Open in App
Solution

## The correct option is B g2When system is released from the position of rest then following are the eqns of motion, 4a = 4g - T .- - - - - -(1)and T = 3a - - - - - - - - - - -(2)on adding eqns (1) and (2), we get, 7a = 4gor a = 4g7≈82Therefore acceleration of block B is g2 towards left side.

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Rubbing It In: The Basics of Friction
PHYSICS
Watch in App
Explore more
Join BYJU'S Learning Program