A 75 kg brown bear climbs 15 meters up a tree to see if he can spot the best blueberry patch in the valley. What is the brown bear's potential energy?
The potential energy of the brown bear can be calculated using the formula:
Potential energy = mass x acceleration due to gravity x height
Here, the mass of the brown bear is 75 kg, acceleration due to gravity is 9.8 m/s^2, and the height climbed by the bear is 15 meters.
Therefore, the potential energy of the brown bear is:
Potential energy = 75 kg x 9.8 m/s^2 x 15 m
= 11,025 joules
So, the potential energy of the brown bear is 11,025 joules.