In this test, my group and I decided to test how the weight of a washer on a parachute would affect how quickly it would fall to the ground. We used 4 different washers, 2 large, and 2 small. We ran 3 trials for each washer. Our goal was to find out which washer would accelerate to the ground faster. Big washer 1 was 0.013kg, which is also 0.127lbs. It accelerated at an average speed of 136.1 cm/s towards the ground. Big washer 2 was 0.014kg, which is also 0.137lbs. The washer accelerated at an average speed of 213.44 cm/s towards the ground. It was a pretty big difference, even though the mass of the objects only have a difference of a thousandth of a kilogram. Small washer 1 was 0.005kg, which would also be 0.049lbs. It accelerated at an average speed of 137.97 cm/s as it fell to the bottom of the stairs. Smaller washer 2 was 0.006kg, which is the same as 0.059lbs. The washer accelerated at an average speed of 147.7 cm/s towards the ground at the bottom of the stairs. There was a much smaller difference between the two numbers for the speed of the smaller washers than in the bigger washers. The washer’s masses also only had a thousandth of difference between them. The reason why the larger washers fell faster than the smaller washers, was because they had larger masses. If you add in air resistance and gravity, the objects with larger masses fall faster, than ones with smaller masses. Friction would also have a larger role in how fast an object fell if it were a smaller object with a smaller mass. So, in conclusion, in our experiment the washers with the greater mass fell faster (on average) than the washers with the smaller masses.