Centre of Mass 3 Question 17
20. A shell is fired from a cannon with a velocity at an angle with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon and the speed of the other piece immediately after the explosion is
(a)
(b)
(c)
(d)
(1986, 2M)
Show Answer
Answer:
Correct Answer: 20. (a)
Solution:
- Let
be the velocity of second fragment. From conservation of linear momentum,