Question

You push with a force of 20 N as you pedal your bicycle to ride to your friend's house, which is 300 m away. How much work do you do?

a) 6,000 J
b) 60 J
c) 300 J
d) 20 J

Answer 1

The correct answer is a) 6,000 J of work done when pushing with a force of 20 N over a distance of 300 meters, because work is the product of force and distance in the direction of the force.

Step-by-step explanation:

The question of how much work is done when you push with a force of 20 N over a distance of 300 meters involves the physical concept of work, which can be calculated with the formula:

Work = Force × Distance × cos(θ)

Since the force is applied in the direction of motion, the angle θ is 0 degrees, and the cosine of 0 degrees is 1. Thus, the work done can be calculated as:

Work = 20 N × 300 m × 1 = 6000 J

Therefore, the correct answer is a) 6,000 J.