Gravitation Question 328
Question: The ratio of radii of earth to another planet is 21 3 and the ratio of their mean densities is 4/5. If an astronaut can jump to a maximum height of 1.5 m on the earth, with the same effort, the maximum height he can jump on the planet is
Options:
A) 1 m
B)0.8 m
C) 0.5 m
D)125 m
Show Answer
Answer:
Correct Answer: B
Solution:
- to K.E. of the person = P.E. at the maximum height
Given