Wednesday, January 20, 2010

Math 3



For this project we were to construct a marble shooter. It needed to be able to shoot 10 different angles and it also had to have 3 different initial speeds. The marble shooter needed to be able to launch from 10ft-20ft. Some groups got less than 10ft other groups got more than 20ft.

Conversion from feet to meters: Multiply by 0.3048



Example of calculations:

Average = Vxi(delta t)
For Vxi average by time
For Vyi use the equation Δy = Vyi(Δt) - 4.9(Δt)2
Then use PEMDAS (parenthesis, exponents, multiply, divide, add, subtract)
Vi =sqrt(v2 xi + v2yi)

1.47 = Vxi(.59)
1.47 = Vxi
.59
Vxi = 2.5 m/s

0 = Vyi(.59) - 4.9(.59)2
0 = Vyi(.59) - 4.9(12.46)
0 = Vyi(.59) -1.71
+1.71 +1.71
1.71 = Vyi (.59)
.59 .59
Vyi = 2.89 m/s

Vi = √2.5 2 + 2.89 2
Vi = 3.82


No comments:

Post a Comment