Answer:
Equivalent Resistance of Resistors in Parallel is
1/R = 1/r1 + 1/r2 .....
1/R = 1/7 + 1/7 + 1/7
R= 7/3
R=2.33ohms
C.) Friction.
Reason:
No force is opposing the motion of an object except frictional force. Hence an object requires 15 N of force to set an object in motion and is greater than friction. Hope this helps, have a great day ahead!
The correct answer, is Option C, I hope this helps :)
The net force acting on the car is 3 which slows the car down.