The gearshift lever A B for the transmission of a sports car has position vector  whose li...

The gearshift lever A B for the transmission of a sports car has position vector  whose line of action passes through points A and B. The driver applies a force  to the knob of the lever to shift gears. If the component of  perpendicular to the gearshift lever must be 5 N to shift gears, determine the magnitude F of the force.

Figure P2.76