Which has the most kinetic energy from its motion? a) a 1,100-kg car traveling 60 km/h b) a 300-kg motorcycle traveling 100 km/h

Question

Which has the most kinetic energy from its motion?
a) a 1,100-kg car traveling 60 km/h
b) a 300-kg motorcycle traveling 100 km/h
c) a 900-kg car traveling 80 km/h
d) a 2,000-kg truck traveling 50 km/h

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Thiên Ân 6 months 2021-07-31T04:08:55+00:00 1 Answers 13 views 0

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    2021-07-31T04:10:03+00:00

    Answer:

    option c

    Explanation:

    K.E=1/2mv(squared)

    K.E=1/2x900x80x80

    K.E=450×6400=2880000J

    convert to KJ=2880000/1000=2880KJ

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