Work Energy And Power Question 41
Question: A body of mass 2 kg is thrown up vertically with K.E. of 490 joules. If the acceleration due to gravity is 9.8
Options:
A) 50 m
B) 12.5 m
C) 25 m
D) 10 m
Show Answer
Answer:
Correct Answer: B
Solution:
Let h is that height at which the kinetic energy of the body becomes half its original value i.e. half of its kinetic energy will convert into potential energy mgh =
therefore
therefore
