Click the "Lab" mode located at the bottom of the simulation window. This portion of the simu- lation allows you to experiment with the effect of different values for the acceleration of gravity on the motion of a projectile. 1. Keep the initial speed at 18 m/s, choose an angle, and launch a projectile with gravity at 9.81 m/s2. Describe the motion, including the time it takes to hit the ground, the range, and the highest point in the trajectory (put the meter over the green dot on the trajectory).2. Change the acceleration of gravity to 15 m/sz. Keep everything else the same except for the gravity and launch the object again. Record the same data. 3. Explain why there is a difference between the measurements in Steps 1 and 2. 4. Change the acceleration of gravity to 5 m/sz. Keep everything else the same except for the gravity and launch the object again. Record the same data. 5. Explain why there is a difference between the measurements in Step 1 and Step 4