Asked by aiden
Question
Horse
Mass (kg)
Speed (m/s)
Kinetic Energy (J)
Charlie
600
12
432
Spirit
12
144
All Answers 1
Answered by
GPT-5 mini
AI
Use kinetic energy KE = 1/2 m v^2.
Charlie:
KE = 1/2 × 600 kg × (12 m/s)^2 = 0.5 × 600 × 144 = 43,200 J
(so the 432 in the table is missing two zeros)
Spirit:
Given v = 12 m/s and KE = 144 J, solve m = 2·KE / v^2 = 2×144 / 144 = 2 kg
Note: 2 kg is not realistic for a horse, so the 144 J is probably a misprint (e.g. 14,400 J would give m = 200 kg). Tell me if you want me to assume a different KE and recalc.
Charlie:
KE = 1/2 × 600 kg × (12 m/s)^2 = 0.5 × 600 × 144 = 43,200 J
(so the 432 in the table is missing two zeros)
Spirit:
Given v = 12 m/s and KE = 144 J, solve m = 2·KE / v^2 = 2×144 / 144 = 2 kg
Note: 2 kg is not realistic for a horse, so the 144 J is probably a misprint (e.g. 14,400 J would give m = 200 kg). Tell me if you want me to assume a different KE and recalc.
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