Question $1$

For an object, for example a car, which is constantly accelerating: Sketch a position versus time graph, a velocity vs time graph and acceleration vs time graph.

QUESTION $2$

In order to find the magnitude of the acceleration due to gravity on some planet, NASA and the CSA invented a simple device which launches a small metal ball straight up with an initial speed of $13\mathrm{.}25\frac{m}{s}.$ The device then times how long the metal ball is in the air before returning to the device. If on the planet, the ball takes $4\mathrm{.}1s$ to return to the device $($and we neglect air resistancel what is the magnitude of the acceleration due to gravity on that planet?