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A mechanic pushes a 3540 kg car from rest to a speed of v, doing 4864 J of work in the process. Find the speed v. Neglect friction between car and road. Answer in units of m/s.
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A mechanic pushes a 3540 kg car from rest to a speed of v, doing 4864 J of work in the process. Find the speed v. Neglect friction between car and road. Answer in units of m/s.

User Siddharthsn
by
4.8k points

1 Answer

3 votes

Answer:

1.66 m/s

Step-by-step explanation:

Work or kinetic energy =
(1)/(2) mv^(2)


4864=(1)/(2) (3540)v^(2)

v = 1.66 m/s

User Bhojendra Rauniyar
by
4.1k points
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