Work Energy And Power Question 57
Question: A sphere of mass m, moving with velocity V, enters a hanging bag of sand and stops. If the mass of the bag is M and it is raised by height h, then the velocity of the sphere was [MP PET 1997]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: A
Solution:
By the conservation of linear momentum Initial momentum of sphere = Final momentum of system
If the system rises up to height h then by the conservation of energy
therefore
Substituting this value in equation (i)
