Physics, asked by sahanigope2004, 7 months ago

if the velocity of an object is increased by 0.1% then the kinetic energy is increased by?
A) 0.1%
B) 0.2%
C) 0.5%
D) 0.01%​

Answers

Answered by agnivethitha
30

Answer:

B

Explanation:

KE=0.5 MV^2

therefore by further calculation we get answer 0.2%

Answered by anjumanyasmin
2

From the given question the correct answer is :

C) 0.5%

if the velocity of an object is increased by 0.1% then the kinetic energy is increased by C) 0.5%

momentum, p=mv

v= \sqrt{\frac{2E}{m} }

p=m\sqrt{\frac{2E}{m} }=\sqrt{2mE}

taking log and then differentiating on both the sides, we get,

Δp/p=1/2=(Δm/m)+1/2(ΔE/E)

Δp/p=1/2×0.1

=0.5

 

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