The rare NASA photo above demonstrates cows are in fact able to jump over the moon.

The energy required to launch an object from the Earth is given by the following equation:

Where:

- a.
- How much energy must a 450 kg cow expend in jumping over the moon? (Don't worry about the moon's gravity or the Earth's atmosphere...)
- b.
- Assuming all the work is done during the jump itself, what would her initial velocity have to be?
- c.
- What would her final velocity be upon her return to Earth?
- d.
- Again assuming all the work would be done during the initial jump, i.e.
for a distance approximately the length of her legs (1 meter), what would her
acceleration need to be?