- #1
evan b
- 10
- 0
Homework Statement
A) The ball's PE is a constant.
B) The velocity vector and the acceleration vector are in the same direction after t= 7.3s.
C) The acceleration is constant.
D) The acceleration is 0 near t= 7.3s.
E) Maximum height is reached at about t=7.3s.
F) The ball's KE increases during the first second.
The Attempt at a Solution
I am pretty sure of the following. Somewhere i am wrong.
A is false
B is true (given once it hits 7.3, gravity is negative(acceleration) and the direction is necative
C is true because accel is gravity and that is always constant.
D is false because if the gravity is constant than it wouldn't be zero
E is true because it starts coming down after 7.3 s
F is true because KE is zero when the ball is in hand but when he releases it, it gains