Mastering Momentum Equations: Examples and Calculations
Learn how to manipulate the momentum equation mathematically, calculate momentum using the formula, solve for mass or velocity, and explore real-world examples involving golf balls, bowling balls, and softballs. Enhance your understanding of momentum-related equations with step-by-step explanations and visual aids.
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Presentation Transcript
Rearranging momentum Equation and teach examples
Learning Objectives I can mathematically rearrange the momentum equation. I can calculate momentum using the formula.
Calculating momentum momentum = mass times velocity p = mv
Formula Representation Formula Represents momentum Units p = m = mass v = velocity Kg*m/s Kilogram (kg) m/s p = m(v)
Solve for Mass (m) Solve for Mass (m) Step 1 Divide both sides by v velocity p = m(v) v __ __ v m = ? ?
Solve for velocity (a) Solve for velocity (a) Step 1 Divide both sides by m - mass p = m(v) m __ __ m v = ? ?
Momentum Related Equations Force Mass Acceleration v = ? m = ? p = mv ? ?
Calculation Example #1 1. What is the momentum of a golf ball with a mass of .046 kilograms and is moving with a velocity of 80m/s east Given/ Unknown p = m = v = Work ? .046kg 80m/s p = 3.68kg m/s p = (.046kg)(80m/s) p = mv
Calculation Example #2 2. What is the mass of a bowling ball that has a momentum of 45kg m/s and a velocity of 5m/s? Given/ Unknown p = m = v = Work 45kg*m/s ? 5m/s m =p 45kg m/s 5?/? m = 9kg m = v
Calculation Example #3 3. What is the velocity of a softball if it has a mass of .50 kg and has a momentum of 20kg m/s. Given/ Unknown p = m = v = Work 20kg*m/s .5kg ? v =p 20kg m/s .5kg v = 40m/s v = m
