Question

an object rest on a horizontal table it is pull to the right by a force of 12 n and towards the left bi 5 n what is the result force​

Answer 1

Answer:

The block moves with constant velocity on horizontal surface, this indicates the acceleration of block is zero,. From newton's IInd law of motion net external force should be zero in case of zero acceleration.

Fnet= 0

Taking right direction as positive force direction

5 N + f N+ (-3) N=0 => f= -2 N where f is frictional force.

the frictional force value is 2N in leftward direction, hence correct answer is B.