Kinematics Question 491
Question: A stone tied to a string of length it’s whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at it’s lowest position and has a speed . The magnitude of the change in it’s velocity as it reaches a position where the string is horizontal it’s[IIT 1998; CBSE PMT 2004]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: D
Solution:
therefore