Monday, October 14, 2013




Driving to school every morning, I mean driving in general made me think of physics and everything I’ve learned in class so far. Starting from where my car is parked (position), to displacement, velocity and also acceleration. John Jay is 19.2 miles away from my house. Every day I make two trips, one from my house to school and then another one from school to my house, therefore that’s 38.4 miles traveled all together. But what’s the actual displacement? The displacement is 0 miles because I always end up where I start and I always take the same way home. Speaking about velocity, let’s say I’m in my car driving down the road at a nice steady 60 miles per hour. My velocity = 60 mph. My acceleration = 0 (since acceleration = change in speed / change in time and my speed doesn't change). There’s a red light in front of me so I stopped at the red light. My velocity = 0mph. My acceleration = 0 since my velocity equals a constant zero. The light turns green. I step on the gas and my car speeds up from 0 mph to 60 mph in 5 seconds. My velocity changes from 0 to 60 mph so my acceleration is 60mph-0mph over 5 seconds which is 12 mph per second.

Evgenija

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