a soccer player kicks a ball, applying a force of 1,000 newtons over a distance of 0.2 meter. the ball travels 50 meters down the field before another player stops the ball. how much work was done during the kick?

answers:

5,000 joules
10 joules
50,000 joules
200 joules

1 answer

To calculate the work done during the kick, we can use the formula for work:

\[ \text{Work} = \text{Force} \times \text{Distance} \times \cos(\theta) \]

where:

  • Work is measured in joules (J),
  • Force is measured in newtons (N),
  • Distance is measured in meters (m),
  • \(\theta\) is the angle between the force and the direction of motion.

In this case, we assume the kick is directly in the direction of the ball's motion, so \(\theta = 0\) degrees (and \(\cos(0) = 1\)).

Given:

  • Force = 1000 N
  • Distance = 0.2 m

Now we can calculate the work done:

\[ \text{Work} = 1000 , \text{N} \times 0.2 , \text{m} \times \cos(0) \]

\[ \text{Work} = 1000 \times 0.2 \times 1 = 200 , \text{joules} \]

So, the amount of work done during the kick is 200 joules.