A cat has a mass of 3 kg and runs at a speed of 6 m/s. How much kinetic energy does the cat have?
A. 75J
B. 9 J
C. 108J
D. 54J

54 Joules

Explanation:

recall that kinetic energy is governed by the equation:

K.E = (1/2) mv²

where,

m = mass = given as 3 kg

v = velocity = given as 6 m/s

Substituting these known values into the above equation,

K.E = (1/2) mv²

K.E = (1/2) (3)(6)²

K.E = 54 Joules

1/2 × 3 × 6² = 54J