On Planet X, a rock is thrown straight up. The position and velocity of the ball at various times are listed below.
(Note: I chose "up" as the "+" direction)
|
Time(s) |
Height(m) |
Velocity (m/s) |
|
0 |
0 |
20 |
|
1 |
17.5 |
15 |
|
2 |
30 |
10 |
|
3 |
37.5 |
5 |
|
4 |
40 |
0 |
|
5 |
37.5 |
-5 |
|
6 |
30 |
-10 |
What is the acceleration due to gravity on Planet X?
BLUE: -5 m/s^2.........YELLOW: -10 m/s^2
PINK: -15 m/s^2........GREEN: -20 m/s^2
PURPLE: None of these
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