Question

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

7 m/s
8 m/s
9 m/s
11 m/s
12 m/s

Answer 1

12 m/s is the answer

Answer 2

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

Step-by-step explanation:

Mass of the object = 11 kg

Velocity of the object = v

Kinetic energy possessed by the object = 792 Joules

`K.E=(1)/(2)mv^2`

`792 Joules=(1)/(2)* 11* v^2`

`v=\sqrt{(2* 792 J)/(11)}=12 m/s`

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