- #1

tootired

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- Homework Statement
- Launcher has a spring force constant of 1.52N/cm. The surface is at an incline of 8.3 degrees.

The Spring is initially compressed 3.75 cm. Find the launching speed of the .164 kg ball when the plunger is released. A due to G is 9.8m/s^2. Friction and the plunger are negligible

- Relevant Equations
- Ei=Ef

Ei = 1/2 K (x)^ 2

K = .0152N/m

x = .0375 m

Ei = 1.06x10^-5

Ef= 1/2mv2 + mgh

m = .164kg, v is unknown, h is .0375sin(8.3)=.00541, Ef set equal to Ei

1.06x10^-5=1/2(.164kg)(v^2)+ (.164kg)(9.8)(.00541)

v = .3254m/s

I have gotten this answer multiple times but it is not correct. I am going a bit crazy, someone please give me clue here

K = .0152N/m

x = .0375 m

Ei = 1.06x10^-5

Ef= 1/2mv2 + mgh

m = .164kg, v is unknown, h is .0375sin(8.3)=.00541, Ef set equal to Ei

1.06x10^-5=1/2(.164kg)(v^2)+ (.164kg)(9.8)(.00541)

v = .3254m/s

I have gotten this answer multiple times but it is not correct. I am going a bit crazy, someone please give me clue here