BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Chapter 3, Problem 2AP
Gravitational force on planet X is 40% of that found on the earth. If a person weighs 667.5 N on the earth, what is the person’s weight on planet X? What is the person’s mass on the earth and on planet X? (Answer: weight on planet X = 267 N; mass = 68 kg on either planet)
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Chapter 3 Solutions
BASIC BIOMECHANICS
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- The above computation of gravitational force between two celestial objects (like Earth and the moon) is based on which equation? (V1)(P1) = (V2)(P2) F = GM1M2/d2 (years)2 = (A.U.)3 vm = ½ (vo + vf) S = vot + ½ (a) t2arrow_forwardAccording to Jean Buridan’s equation, the momentum or “impetus” of an 8 kilogram mass moving at 48 meters per second would be: 192 kilogram-meters per second 384 kilogram-meters per second 576 kilogram-meters per second 768 kilogram-meters per second 960 kilogram-meters per secondarrow_forwardThe momentum or “impetus” of a 12 kilogram mass moving at 7 meters per second can be stopped completely by a direct collision with a 3-kilogram mass moving at a velocity of: 14 meters per second 28 meters per second 36 meters per second 63 meters per second 84 meters per secondarrow_forward
- According to Isaac Newton, if the distance between Earth and the moon were to triple or increase three-fold (increasing from 240,000 to 720,000 miles), then the gravitational force between them would: increase three-fold from its present value increase nine-fold from its present value remain the same as its present value decrease to one-third of its present value decrease to one-ninth of its present valuearrow_forwardBased on the acceleration in the above ball rolling down an inclined plane (with vo = 0 meters per second), how far would it have traveled along the inclined plane in the first six seconds of rolling? 9 meters 16 meters 25 meters 36 meters 49 metersarrow_forwardWhat was the momentum or “impetus” of the above moving object before its collision? 252 kilogram-meters per second 168 kilogram-meters per second 120 kilogram-meters per second 84 kilogram-meters per second 28 kilogram-meters per secondarrow_forward
- When Galileo Galilei rolled a ball down an inclined plane, it traveled 1.0 meters in the first second, and a total of 4.0 meters in the first two seconds. What was its acceleration on this inclined plane? 2.0 meters per second2 3.0 meters per second2 4.0 meters per second2 5.0 meters per second2 6.0 meters per second2arrow_forwardUse the following information to answer questions 20 and 21. Assignment Booklet 4B Two cars, each with a mass of 1000 kg, are travelling in opposíte directionsn is car travelling to the right is travelling 30 m/s, and the car travelling to the lert is travelling 20 m/s. 1000 kg 30 m/s 1000 kg 20 m/s 20. What is the total momentum of the vehicles after they collicde? A. -50 000 kg-m/s B. 50 000 kg.m/s C. -10 000 kg.m/s D. 10 000 kg.m/s al ne 21. If the two vehicles collide and lock together, what is their velocity after the collision? A. -5 m/s Aon s quAua B. 5 m/s elg C. -10 m/s D. 10 m/s Return to page 70 of the Student Module Booklet and begin the Section 3 Review. os elomun ef et birov ort to solniedarrow_forwardWhen Galileo Galilei pushed a ball down an inclined plane, it had an initial velocity (vo) of 4.0 meters per second (time = 0 seconds) and a final velocity (vf) of 10.0 meters per second (time = 2 seconds). How far did the ball travel along the inclined plane in these 2 seconds? 14 meters 20 meters 28 meters 40 meters 84 metersarrow_forward
- The above computation of momentum (the term used by Isaac Newton), or “impetus” (the term used by Jean Buridan), is based on which of the following equations? (mass1)(velocity1) = (mass2)(velocity2) F = GM1M2/d2 (years)2 = (A.U.)3 vm = ½ (vo + vf)arrow_forwarda toy car rolls 10 meters (m) across the floor. it takes 5 seconds (s) to cross this distance. what is the speed of this car?arrow_forwardWhat does it mean to have a high specific gravity? What is the scale we are looking at to determine specific gravity? List some values. What kinds of things might lead to high specific gravity?arrow_forward
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