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


Two blocks connected by a massless string slide down an inclined plane having angle of inclination as 37. The masses of two blocks are 4 kg and 2 kg with μ as 0.75 and 0.25 respectively. Then______(Take g=9.8 m/s2)

136597.png

A
The common acceleration of two masses is 1.3 ms2 and tension in the string is 5.4 N.
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
The tension in the string is 14.9 N.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
The acceleration of the masses is 1.5 ms2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
The acceleration of masses is 5.3 ms2 and tension in the string is 1.3 N.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A The common acceleration of two masses is 1.3 ms2 and tension in the string is 5.4 N.
From FBD of 2 kg block,
2a=2gsin37Tf
2a=2gsin37T0.25(2gcos37)............................(1)
From FBD of 4 kg block,
4a=4gsin37+Tf
4a=4gsin37+T0.75(4gcos37)............................(2)
Eq.(1)+Eq. (2),
6a=6gsin373.5gcos37
a=1.3m/s2
put the value in (1), we will get,
2.6=12T4
T=82.6=5.4N
175677_136597_ans.png

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