A 1.50 kg snowball is fired from a cliff 11.5 m high. The snowball's initial velocity of 14.0 m/s, directed 41.0° above the horizontal.
(b) What is the change in the gravitational potential energy of the snowball-Earth system during the flight?
_____ J
2007-02-24 15:14:59 · 3 answers · asked by x2carlosp 2 in Science & Mathematics ➔ Physics
The change in GPE is just the GPE before minus the GPE after which if u set the bottom of the cliff to be 0 m makes the GPE 0 J. So GPE=mgh=1.50kg(9.8 m/s2)(11.5 m)=169 J.
2007-02-24 15:22:41 · answer #1 · answered by billybob 2 · 0⤊ 0⤋
The maximum change is from the peak of the travel to the ground, which is the initial GPE plus the vertical component of the kinetic energy
2007-02-24 15:35:34 · answer #2 · answered by arbiter007 6 · 0⤊ 0⤋
shut up foo
2007-02-24 15:17:13 · answer #3 · answered by Anonymous · 0⤊ 1⤋