Work Energy And Power Question 131
Question: An inelastic ball is dropped from a height of 100 m. Due to earth, 20% of its energy is lost. To what height the ball will rise [RPMT 1996]
Options:
A) 80 m
B) 40 m
C) 60 m
D) 20 m
Show Answer
Answer:
Correct Answer: A
Solution:
$ mgh=\frac{80}{100}\times mg\times 100 $
therefore $ h=80m $
BETA
