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General Knowledge · Q757

Practice

Competitive Exams · General Knowledge · question 757

Q757

An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is

A.
20 J
Answer
B.
25 J
C.
10 J
D.
40 J

Answer: Option A

Solution

Answer: Option A
Solution:
Kinetic energy = 1/2mv2
= 1/2*10*22
= 1/2*10*4
= 5*4
= 20 J