Answer:
288J
Explanation:
recall the formula for kinetic energy
KE = (1/2) mv²
where m is the mass (= 4kg) and v is the velocity(=12 m/s)
hence
KE = (1/2) (4)(12)² = 288J
Answer: 288 Joules
K.E = 1/2* mass * square of the velocity
K.E = 1/2 * m * v ^ 2
From the question:
Mass = 4kg
Velocity = 12m/s
Therefore:
K.E = 1/2 * 4 * 12^ 2
= 0.5 * 4 * 144
= 288 Joules
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