# An electric toy car with a mass of #3 kg# is powered by a motor with a voltage of #7 V# and a current supply of #3 A#. How long will it take for the toy car to accelerate from rest to #8/3 m/s#?

##### 1 Answer

Jan 2, 2018

The time is

#### Explanation:

The power is

The voltage is

The current is

The power is

The kinetic energy of the car is

The mass is

The speed is

so,

Let the time

The time is