(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The engine in an imaginary sports car can provide constant power to the wheels over a range of speeds from 0 to 70 miles per hour (mph). At full power, the car can accelerate from zero to 30.0 mph in time 1.30s .

At full power, how long would it take for the car to accelerate from 0 to 60.0 mph ? Neglect friction and air resistance.

2. Relevant equations

No clue

3. The attempt at a solution

I assumed that since it takes 1.3s to go from 0-30, it would take 2.6 to got from 0-60, yet it was wrong and got this for a feedback. :

Think about how kinetic energy is related to velocity, and how power is related to energy.

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# A Car with Constant Power

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