(A) A ball is tossed in the air and released. It moves up, reverses direction, f
ID: 1463140 • Letter: #
Question
(A) A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same height it was released. Considering the time interval after the ball is released and before it is caught, when does the gravitational potential energy of the ball have its maximum value?
1-The gravitational potential energy of the ball is always a constant.
2-When the ball is caught.
3-When the ball has highest speed.
4-When the ball is released.
5-When the ball reaches the highest point.
(B) Considering the time interval after the ball is released and before it is caught, when does the gravitational potential energy of the ball have its minimum value?
1-The gravitational potential energy of the ball is always a constant.
2-When the ball is released.
3-When the ball has zero speed.
4-When the ball reaches the highest point.
5-When the ball has highest speed.
(C) A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same height it was released. No air resistance. When does the kinetic energy of the ball have its maximum value?
1-Not enough information
2-When the ball reaches the highest point.
3-When the ball is released because the speed is the highest.
4-The kinetic energy of the ball is always a constant.
5-When the ball is caught because the speed is the lowest.
(D) A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same height it was released. When does the kinetic energy of the ball have its minimum value?
1-When the ball reaches the highest point.
2-The kinetic energy of the ball is always a constant.
3-Just before the ball the caught.
4-Not enough information
5-When the ball is released.
(E) A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same height it was released. Ignore friction and air resistence. What about the mechanical energy of the ball?
1-The mechanical energy of the ball is always a constant.
2-None of above.
3-The mechanical energy of the ball is maximum when the ball is released.
4-The mechanical energy of the ball is maximum when the ball reaches the highest point.
5-The mechanical energy of the ball is maximum when the ball is caught.
Explanation / Answer
(A)
5)When the ball reaches the highest point
(B)
2-When the ball is released
(C)
3 -When the ball is released because the speed is the highest.
(D)
1-When the ball reaches the highest point.
(E)
1-The mechanical energy of the ball is always a constant.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.