Try this:
Take an egg and try to make it hit the ground without breaking. How? Simple.
Fnet = W - R/N (Applying Newton's second law)
Then apply a parachute to the egg and watch it safely hit the ground.
Another idea is to choose a spot where a metal ball will land via a ramp. Use a coffee tin to show this area. Then fill out a VoVfDAT table. Ay = -9.8 Dy = Height measured from ball on ramp, Dx = Horizontal measurement from the ramp to tin, Ax = 0 (Unless you use air resistence), Vo = ?, Vf = ?, T = Using a stop watch, make five trials of the ball falling on the floor, or do t = Vyo + the square root of Vy0 to the scond - 2g/g. and divide by 5 to find the average. Then, use the equation VyO = Vy + gt.