A monkey weighing 50 kg climbs up a vertical tree of height 300 m. How much potential energy does it gain? [Take, g = 10 m/s²]
(1) 1.5 x 10⁶ J
(2) 1.5 x 10⁵J
(4) 15 x 10⁶ J
(3) 15 x 10⁵ J
(1) 1.5 x 10⁶ J
(2) 1.5 x 10⁵J
(4) 15 x 10⁶ J
(3) 15 x 10⁵ J
Answers & Comments
Explanation:
Given, m = 50 kg,
g = 9.8 ms-2,
h = 300 m
Work done by the body = mgh
= 50 x 9.8 x 300
= 14.7 x 104 J
Gain in PE = Work done = 14.7 x 104 J