Question

Two students are pushing a car. What should be the

angle of each student's arms with respect to the flat
ground to maximize the horizontal component of
the force?
(1) 0°
(2) 30°
(3) 45°
(4) 90°

Answer 1

The angle of each student's arms should be 0° to maximize the horizontal component of the force.

Step-by-step explanation:

The angle of each student's arms with respect to the flat ground should be 0° in order to maximize the horizontal component of the force.

When pushing a car, the force that moves the car forward is the horizontal component of the force. This force is maximum when the angle between the direction in which the students push and the flat ground is 0°. Any angle larger than 0° would introduce a vertical component of the force, which does not contribute to the car's forward motion.

Therefore, the correct answer is option (1) 0°.

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