Question
In: Physics
A ball of mass, m is thrown straight up and rises h after leaving your hand,...
A ball of mass, m is thrown straight up and rises h after leaving your hand, it momentarily stops. Acceleration due to gravity g is downward. Ignore air resistance.
Part A (5 points): If the ball is the system, and the Earth is the surroundings, what is the change in potential energy, ΔUsys of the system, and what is the work done, Wsurr by the surroundings ?
Δ Usys = 0; Wsurr = -mgh
Δ Usys = mgh; Wsurr = -mgh
Δ Usys = mgh; Wsurr = 0
Δ Usys = 0; Wsurr = 0
Δ Usys = -mgh; Wsurr = 0
Part B: If the ball + Earth is the system, and nothing is in the surroundings, what is the change in potential energy, ΔUsys of the system, and what is the work done, Wsurr by the surroundings ?
Δ Usys = 0; Wsurr = 0
Δ Usys = mgh; Wsurr = -mgh
Δ Usys = mgh; Wsurr = 0
Δ Usys = 0; Wsurr = -mgh
Δ Usys = -mgh; Wsurr = 0
Solutions
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you have further any problem then comment.
genius_generous answered 1 year agoRelated Solutions
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