A 10% efficient engine accelerates a 1500kg car from rest to 15m/s. How much energy is transferred to the engine by the burning gasoline?

The input energy is 1687.5 kJ.

Explanation:

Given that,

Mass of car = 1500 kg

Speed of car = 15 m/s

Efficiency = 10 %

Now output is equal to work done

We need to calculate the work done

Using work energy theorem.

Work done = change in kinetic energy

Put the value into the formula

Now we know that efficiency is given by

Hence, The input energy is 1687.5 kJ.

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

the force required to move the cart is divided by three or 33.33 n.