I need help with these honor questions please. Physics lab 1

1. How would your results of Investigations 1 and 2 change if the masses of the pucks were doubled? 2. What will be the drop time of the puck in your first investigation if the incline angle of the air table with respect to the horizon is reduced by a factor of 2? Explain 3. Imagine that two pucks in the first investigation are released 1 s apart, Will the distance between them remain the same during their "free fall" prior to the impact? 4. If we imagine a "reverse" situation where the puck from your second investigation is launched backwards from the point of impact with reversed vx and vy velocities (vx pointing left and vy pointing up), what will be the average acceleration and velocity in both x and y directions? What will be the travel time to the highest point