Show the calculations needed to calculate the following:

mass = 52.72grams/0.05272kg

height = 1.40meters

gravity = 9.8

Calculate the Gravitational Potential Energy of the machine.

Eg = mg△h

Eg = (0.05272)(9.8)(1.40)

Eg = .07233J

Calculate the Final Kinetic Energy of the machine.

Epi + Eki = Epf +Ekf

• m = 52.72g
• v(i) = ?
• g = 9.8
• v(f) = ?
• Ek = ?

gh(i)+½v(i)² = gh(f)+½v(f)

(9.8)(1.40)+0.5(0²) = (9.8)(0)+0.5 v(f)

13.72+0 = 0.5 v(f)

13.72×2 = vf

27.44 = vf²

√27.44 = 5.23 = v(f)²

Ek = ½mv²

Ek = (0.5)(52.72)(5.23²)

Ek = 721.02J

 

Calculate how much energy was lost to heat due to friction in your calculations.

we didn’t account for loss of energy in or calculations, therefore 0 energy was lost.

FINAL PRESENTATION