What would be the gravitational potential in SI units of the anvil in Example 4.5 if its mass was 100. kg and the cliff was 1000. meters high?

Example 4.5

Wile E. Coyote holds an anvil of mass 100. lbm at the edge of a cliff, directly above the Road Runner who is standing 1000. feet below. Relative to the position of the Road Runner, what is the gravitational potential energy of the anvil?

Need: GPE.
Know: Anvil has mass 100. lbm. The reference datum level, where the Road Runner is standing can be chosen as zero. The height h of anvil is 1000. feet referenced to Road Runner’s datum. Because we are calculating in Engineering English units, we will also have to use g_c.

How: Equation (4.6) is in Engineering English units,

Transcribed Image Text:

mgh GPE = gc