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
AnswerB.
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