The Porsche 918 Spyder accelerates from 0 to 60 mi/hr in 2.2 seconds and has an

Question

The Porsche 918 Spyder accelerates from 0 to 60 mi/hr in 2.2 seconds and has an inertia of about 1700 kilograms. The Porsche 918 Spyder's engine is 35% efficient at producing kinetic energy.

3[C]) Which combination of statements about the above scenario are most accurate? [Enter your answer as a string of the letter options you believe are correct. For instance, if you think options A, D, and E are correct, then enter "ADE"]

A) The car accelerates by transferring source energy into kinetic energy.
B) The car's thermal energy increases as it accelerates.
C) The car's acceleration is a dissipative process.
D) The car's acceleration is a reversible process.
E) None of the above

Explanation / Answer

u =0 ,v =60mi/hr , t =2.2 s, m=1700 kg

K =0.35E

car mechanical energy converted into kinetic energy and thermal energy.it is not reversible process.

Correct otions are (A),(B) (C)

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