A0.954-kg toy car is powered by three d cells (4.50 v total) connected directly to a small dc motor. the car has an effective energy conversion efficiency of 36.1%, meaning that 36.1% of the electric energy applied to the motor is converted into translational kinetic energy. after 7.88 seconds, the car, which is initially at rest, reaches a speed of 1.27 m/s. what is the average current supplied to the car\'s motor?

0.06 A

Explanation:

We have given mass =0.954 kg

velocity =1.27 m/sec

efficiency =0.361 the output kinetic energy of the motor

Efficiency =0.361

so input to the motor = output/efficiency

so input to the motor =

we know that where E is energy and T is time so

We know that power P=VI we have given V=4.5 VOLT

So current

electric

explanation:

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."