if a car engine does 600,000 J of work over a 500m distance and the mass of the car is 250Kg then what is the final velocity of the car?

Question

Physics

Amari May

12 May, 07:29

if a car engine does 600,000 J of work over a 500m distance and the mass of the car is 250Kg then what is the final velocity of the car?

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Answers (1)

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London Ruiz · Answer 1

Given that

Work = 600,000 J,

distance (S) = 500 m,

mass (m) = 250 Kg,

Determine the velocity of car (v) = ?

We know that,

Work = Force * distance

=> Force = Work : distance

= 600,000 : 500

= 500 N.

Also Force F = m. a; from Newtons II law

500 = 250 * a

a = 2 m/s.

Final Velocity from the given formula

V² = u² + 2. a. s

= 0 + 2 * 2 * 500

= / sqrt{2000}

v = 44.7 m/s