Recent content by lezard1

i made the mistake with the length of the car the first time but i deleted that data, my car is broken but ill try to get it fixed for after christmas

thank you for the reassurance and guidance

which means that although the values show rounded they are calculated to many many decimal points, so only the results are rounded, no rounding during the calculations

yes i used excel to round

oh, yes of course for the 18.1 m run it used elastic propulsion but for the lab trials it used a ramp(and the elastic unattached)

what worried me was the varying values for the coefficient of friction, this was all with the same car and that value shouldn't change, I couldn't find where i went wrong in the math and repeated tests came out at close to the same exact values

you mean the strength? they are staples #33 , the small normal ones or maybe slightly thinner. I used a light flywheel design car that went 18.1 meters but moved slowly, the rubber band was wrapped around the axle

This is my method Objective: To find the coefficient of friction for a rubber band car. Equipment: • Rubber band car • Ramp • 2 rulers • Measuring tape • 2 Digital Cameras capable of 30 fpsExperimental procedure: 1. Create a ramp and where it hits the ground mark off 10 cm distance straight...

noticed that the second i posted, fixed now

Homework Statement I preformed a experiment to find the joules of work taken for my elastic band car to travel a distance of 18.1 meters Does my result seem correct?