Question

What’s the velocity of an 11-kilogram object with 792 joules of kinetic energy?

Answer 1

Answer: The velocity of the object is 12 m/s.

Explanation:

Mass of the object = 11 kg

Velocity of the object = v

Kinetic energy possessed by the object  = 792 Joules

$K.E=\frac{1}{2}mv^2$

$792 Joules=\frac{1}{2}\times 11\times v^2$

$v=\sqrt{\frac{2\times 792 J}{11}}=12 m/s$

Hence, the velocity of the object is 12 m/s.

Answer 2

12 m/s is the answer
 
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