1. At any point in the system of
the ME of the ball is_____
A.constant
B.minimum
C.minimum
D.zero
2. at which point the ball have a maximum potential energy
A. decreases and then increase
B. increases and then decreases
C.decreases only
D.constant
3. the ball's kinetic of the point C is less than its kinetic energy at point
A only
B.A,D and E
C. B.only
D. D and E
4.the ball will have a minimum gravitational potential energy at point
A. A
B. B
C. C
D. D
E. E​