alleryStart learning →A toy car has 50 J of energy at the top of a slope. If 20 J turns into heat, how much goes into motion?
A70 J
B20 J
C30 J
D50 J
Answer & Solution
Correct answer: C. 30 J
Total energy stays 50 J, so motion gets 50 minus 20, which is 30 J.
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