Last Updated On [03-11-2023]
A pendulum bob of mass 
connected to the end of an ideal string of length 
is released from rest from horizontal position as shown in Fig.
At the lowest point, the bob makes an elastic collision with a stationary block of mass 5
, which is kept on a frictionless surface. Mark out the correct statement(s) for the instant just after the impact
.png)
|
a) |
Tension in the string is |
b) |
Tension is the string is |
|
c) |
The velocity of the block is |
d) |
The maximum height attained by the pendulum bob after impact is (measured from the lowest position) |
Question ID - 100615 :- A pendulum bob of mass connected to the end of an ideal string of length is released from rest from horizontal position as shown in Fig.
At the lowest point, the bob makes an elastic collision with a stationary block of mass 5 , which is kept on a frictionless surface. Mark out the correct statement(s) for the instant just after the impact
a)
Tension in the string is 
b)
Tension is the string is 
c)
The velocity of the block is 
d)
The maximum height attained by the pendulum bob after impact is (measured from the lowest position) 
A pendulum bob of mass connected to the end of an ideal string of length is released from rest from horizontal position as shown in Fig.
At the lowest point, the bob makes an elastic collision with a stationary block of mass 5 , which is kept on a frictionless surface. Mark out the correct statement(s) for the instant just after the impact
|
a) |
Tension in the string is |
b) |
Tension is the string is |
|
c) |
The velocity of the block is |
d) |
The maximum height attained by the pendulum bob after impact is (measured from the lowest position) |
(a,d)
The velocity of bob just before the impact is 
along the horizontal direction
.png)
From momentum conservation,
From coefficient of restitution equation,
Solving above equations, we get 
For tension in string,
Let the maximum height attained by the bob be 
, then 
Next Question :
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Two particles of masses
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|
a) |
Zero |
b) |
|
c) |
|
d) |
|
and
in projectile motion have velocities 
and
, respectively, at time 
. They collide at time 
. Their velocities become 
and
at time 
while still moving in air. The value of
is
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