A toy truck has a speed of 10 m/s and kinetic energy of 50 J. What is its mass?
2 answers:
Answer: 5kg
Explanation: formula K=1/2mv^2
50=10m
Answer:
C
Explanation:
KE = 1/2 m v^2
KE *2 / v^2 = m
50 (2)/ 10^2 = m = 1 kg
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