A 0.130 kg ball falls 2.8 m. How much work does the force of gravity do on the ball?

To solve this problem, we need to use the formula for work done by a force, which is:

Work = Force x Distance

In this case, the force is the force of gravity acting on the ball. The force of gravity is given by the equation:

Force = mass x gravity

where the mass is 0.130 kg and gravity is approximately 9.8 m/s². So, the force of gravity on the ball is:

Force = 0.130 kg x 9.8 m/s² = 1.274 N

Now, we can calculate the work done by the force of gravity. The distance the ball falls is 2.8 m, so:

Work = Force x Distance = 1.274 N x 2.8 m = 3.5672 J

So, the force of gravity does 3.5672 Joules of work on the ball as it falls.