If linear momentum is increased by 20%, then kinetic energy is increased by
a. 63%
b. 54%
c. 44%
d. 28%
Answers
Answered by
0
Answer:
Explanation:
44%
Answered by
2
Answer:
c
Explanation:
Suppose p is momentum.
K.E ∝ p²
new K.E ∝ (p + 20p/100)²
K.E ∝ (p + 0.2p)²
K.E ∝ (1.2p)²
K.E ∝ 1.44p²
% change in K.E = (1.44p² - p²)/p² × 100
= 0.44p²/p² × 100
= 44%
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