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