Work Energy And Power Question 242
Question: A steel ball of mass 5g is thrown downward with velocity 10 m/s from height 19.5 m. It penetrates sand by 50 cm. The change in mechanical energy will be
Options:
A) 1 J
B) 1.25 J
C) 1.5 J
D) 1.75 J
Show Answer
Answer:
Correct Answer: B
Solution:
[b]
K.E. at the ground
