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11. Superman has a linear momentum 30,000 kg*m/s, based on a mass of 100 kg and a velocity of 300 m/s, what would be Superman's new momentum if: a. His velocity is doubled? L b. His velocity is tripled? L c. His velocity is cut in half? L d. His mass was doubled? L e. Both his velocity and mass were doubled? L

11. Superman has a linear momentum 30,000 kg*m/s, based on a mass of 100 kg and a velocity of 300 m/s, what would be Superman's new momentum if: a. His velocity is doubled? L b. His velocity is tripled? L c. His velocity is cut in half? L d. His mass was doubled? L e. Both his velocity and mass were doubled? L

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11. Superman has a linear momentum 30,000 kg*m/s, based on a mass of 100 kg and a velocity of 300 m/s, what would be Superman's new momentum if: a. His velocity is doubled? L b. His velocity is tripled? L c. His velocity is cut in half? L d. His mass was doubled? L e. Both his velocity and mass were doubled? L
Transcribed Image Text:11. Superman has a linear momentum 30,000 kg*m/s, based on a mass of 100 kg and a velocity of 300 m/s, what would be Superman's new momentum if: a. His velocity is doubled? L b. His velocity is tripled? L c. His velocity is cut in half? L d. His mass was doubled? L e. Both his velocity and mass were doubled? L
Definitions and Equations: Moment of Inertia (): Tendency to resist angular acceleration; the angular equivalent of mass. In practical terms it is a measure of how hard it is to rotate an object or segment, like a baseball bat or a body segment. It is the sum of the products of the mass (m) with the square of its distance from the axis of rotation (k?). I= mk² Linear Momentum (L): • L=mv (kg*m/s) Converting weight to mass 1 lb. = 4.45 N To convert a weight in Newton's into a mass in kg, divide the weight in Newton's by the acceleration due to gravity (-9.81 m/s²) If a person has a weight of -900 N (202.25 lbs.), you would calculate their mass by dividing -900N by -9.81 m/s2, m = -900 N/-9.81 m/s2 =91.74 kg Grams to Kilograms 1000 g =1 kg Table 1: Segment Length, Mass and Center of Mass Locations for Woman and Men Segment Length (cm) Mass (%) COM Location (%) W M W M W M Upper Arm 27.51 28.17 2.55 2.71 57.54 57.72 Forearm 26.43 26.89 1.38 1.62 45.59 45.74 Hand 7.80 8.62 0.56 0.61 74.74 79.00 Thigh 36.85 42.22 14.78 14.16 36.12 40.95 Shank 43.23 43.40 4.81 4.33 44.16 44.59 Foot 22.83 25.81 1.29 1.37 40.14 44.15
Transcribed Image Text:Definitions and Equations: Moment of Inertia (): Tendency to resist angular acceleration; the angular equivalent of mass. In practical terms it is a measure of how hard it is to rotate an object or segment, like a baseball bat or a body segment. It is the sum of the products of the mass (m) with the square of its distance from the axis of rotation (k?). I= mk² Linear Momentum (L): • L=mv (kg*m/s) Converting weight to mass 1 lb. = 4.45 N To convert a weight in Newton's into a mass in kg, divide the weight in Newton's by the acceleration due to gravity (-9.81 m/s²) If a person has a weight of -900 N (202.25 lbs.), you would calculate their mass by dividing -900N by -9.81 m/s2, m = -900 N/-9.81 m/s2 =91.74 kg Grams to Kilograms 1000 g =1 kg Table 1: Segment Length, Mass and Center of Mass Locations for Woman and Men Segment Length (cm) Mass (%) COM Location (%) W M W M W M Upper Arm 27.51 28.17 2.55 2.71 57.54 57.72 Forearm 26.43 26.89 1.38 1.62 45.59 45.74 Hand 7.80 8.62 0.56 0.61 74.74 79.00 Thigh 36.85 42.22 14.78 14.16 36.12 40.95 Shank 43.23 43.40 4.81 4.33 44.16 44.59 Foot 22.83 25.81 1.29 1.37 40.14 44.15
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