A simple pendulum consisting of a mass M attached in a string of length L is released from rest at an angle 
. A pin is located at a distance l below the pivot point. When the pendulum swings down, the string hits the pin as shown in the figure. The maximum angle 
which string makes with the vertical after hitting the pin is –
A
cos –1 
B
cos –1 
C
cos –1 
D
cos –1 
Text Solution
Verified by ExpertsThe correct answer is:
C
At the bottom most point, square of speed of bob,
v 2 = 2 gL(1 – cos 
)
It will rise further to a height,
h = 
= L(1 – cos 
)
or (L – l) (1 – cos 
) = L(1 – cos 
)
= cos –1 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A body of mass hangs at one end of a string of length l , the other end of which is fixed. It is g…
The tension in the string revolving in a vertical circle with a mass m at the end which is at the l…
A stone of mass m is tied to a string and is moved in a vertical circle of radius r making n revolu…
A tube of length is filled completely with an incompressible liquid of mass and closed at both th…
The kinetic energy of a particle moving along a circle of radius depends on the distance covered …
A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 m/sec . A…