Drop It Like Its Hot

This week in class we did our egg drop. My group (Amber and Megan) and I created our capsule by digging a hole in the middle sponge, placing our egg inside and sandwiching it between the other two sponges. Then, we used a rubber band to keep it together and rope so that it was extra safe. It was my job to launch our capsule. As I threw it onto the road, I had little butterflies in my tummy. Fortunately, they flew away when I saw the result that our egg had survived. Due to the increased duration of contact with the road and the air resistance, our egg was safe and sound in its spongey home.

Jump Around, Jump, Jump, Jump Around

This picture is of my friend Tori and me. My friend Skye needed jumping pictures, so Tori and I were nice enough to help him out, with our books, backpacks, laptops and all. In class this week, we were shown examples that displayed that an increased contact time decreases the amount of force on an object. This was shown with the boxers. If the boxers moved with the hit, the impact of the force of less because the contact time was longer. In this picture, when Tori and I landed, we bent our knees. This increases the contact time and like the car and the crumple zone, allowed for some give and distribution of momentum. If he had landed flat footed and legs straight, the momentum would've been stopped suddenly and would be bad for our knees.

HUGE DA WAVES

I am proud to say that I took this picture because I am usually horrid at taking pictures. Yes, PC: Allie. This Saturday, me and some of my friends went to Kailua beach. We had a great time and played sand volleyball and swam and ate, the usual beach activities. On one occasion, the ball was sandy, so I threw it into the waves and went to go retrieve it. On my way to the ball, the little Kailua waves suddenly became huge and totally knocked me over. Sand EVERYWHERE. Like the lab we did in class this week, the wave had more momentum than I did and transferred to me, which is why I flew backwards (in a negative direction).

Lets Hear It For New York

This isn't the best quality picture, but it is a great application for the unit we are going to be learning, momentum. This past week, I was in the East Coast for college tours. This particular picture was taken when we first arrived in New York and we were on the Air Train. Momentum is defined as the quantity of motion of a moving body, measured as a product of its mass and velocity. The equation would look like this p = mv. Let's say the mass of the Air Train is about 50 tons which is equivalent to about 45,359 kg and its velocity is about 20 mph which is equivalent to about 9 m/s. To find the momentum at the given moment, we would simply multiply 45,359 kg with 9 m/s. The product is 408,231 N.