An electric toy car with a mass of 5 kg is powered by a motor with a voltage of 4 V and a current supply of 2 A. How long will it take for the toy car to accelerate from rest to 3 m/s?
1 Answer
Nov 13, 2016
Given
Let time taken to gain the velocity be t sec
Now
The electrical energy spent in t sec will go to increase the velocity of the car from zero to
So