Basic Biomechanics
7th Edition
ISBN: 9780073522760
Author: Susan J Hall
Publisher: McGraw-Hill Education
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Chapter 10, Problem 4AP
A buoy marking the turn in the ocean swim leg of a triathlon becomes unanchored. If the current carries the buoy southward at 0.5 m/s, and the wind blows the buoy westward at 0.7 m/s, what is the resultant displacement of the buoy after 5 min? (Answer: 258m; ∠ = 54.5° west of due south)
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When 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 meters
why is the maximum velocity in the michaeli's equation not touching the rectangular hyperbolic curve
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) t2
Chapter 10 Solutions
Basic Biomechanics
Ch. 10 - A runner completes 6 laps around a 400 m track...Ch. 10 - A ball rolls with an acceleration of 0.5 m/s2. If...Ch. 10 - A wheelchair marathoner has a speed of 5 m/s after...Ch. 10 - An orienteer runs 400 m directly east and then 500...Ch. 10 - An orienteer runs north at 5 m/s for 120 s and...Ch. 10 - Why are the horizontal and vertical components of...Ch. 10 - A soccer ball is kicked with an initial horizontal...Ch. 10 - If a baseball, a basketball, and a 71.2-N shot...Ch. 10 - A tennis ball leaves a racket during the execution...Ch. 10 - Prob. 10IP
Ch. 10 - Answer the following questions pertaining to the...Ch. 10 - Provide a trigonometric solution for Introductory...Ch. 10 - Provide a trigonometric solution for Introductory...Ch. 10 - A buoy marking the turn in the ocean swim leg of a...Ch. 10 - A sailboat is being propelled westerly by the wind...Ch. 10 - A Dallas Cowboy carrying the ball straight down...Ch. 10 - A soccer ball is kicked from the playing field at...Ch. 10 - A ball is kicked a horizontal distance of 45.8 m....Ch. 10 - A badminton shuttlecock is struck by a racket at a...Ch. 10 - An archery arrow is shot with a speed of 45 m/s at...
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- Suppose as astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 130 kg, and when the astronaut gets in scale, the reading is 477 N. What is the acceleration due to gravity on Mars?arrow_forwardWhen Galileo Galilei rolled a ball down an inclined plane, it traveled 2 meters in the first second, and a total of 8 meters in the first two With vo = 0, what was its acceleration on this inclined plane? 0 meter per second2 0 meters per second2 0 meters per second2 0 meters per second2 0 meters per second2arrow_forwardWhich of the following components of Km is largest in magnitude? k2 O k-1 O k1 O k-2arrow_forward
- a 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_forwardBased on the speculations of Nicole Oresme, and on the equation relating spatial distance, time, initial velocity, and constant acceleration developed by the Mertonian Calculators, how far would you expect a falling object to travel in 5 seconds (falling from a spaceship towards the Earth, in the vacuum of space), starting at 0 feet/second, with constant acceleration (32 feet/sec2), and neglecting possible air friction? 144 feet 256 feet 400 feet 576 feet 784 feetarrow_forwardKepler’s third law can be stated mathematically as: velocity = distance/time (years)2 = (A.U.)3 S = vot + ½ (a) t2 vm = ½ (vo + vf) F = GM1M2/d2arrow_forward
- The “mean-speed theorem” for finding average velocity under constant acceleration, proposed by the Oxford Calculators, and demonstrated geometrically by Nicole Oresme, is expressed algebraically as: density = weight/volume (m1)(v1) = (m2)(v2) (vm) = 1/2 (v0 + vf) s = (v0)(t) + 1/2 (a)(t2) velocity = distance/timearrow_forwardHow would warmer temperatures affect Km and Vmax on Michaelis-Menton curve?arrow_forwardKnots are units of: 8 8 8 8 8 Wind speed. Wind direction. Altitude. Pressure. Precipitation.arrow_forward
- Rotate the ball horizontally on an 80 cm long non-stretchable cord with angular velocity of 3 s^(-1). After ten seconds of clockwise rotation, the cord breaks. At what speed and in what direction does the ball fly, if it was faced north at time t = Os? Where and after how much time does the ball land on the ground that is 1 m below the plaine in which we rotate the string? {Solution: v= (0.37 m/s,2.37 m/s); d=1.07 m, t=0.447 s.) }arrow_forwardCalculate the total amount of work performed in 5 minutes of exercise on the cycle ergometer, given the following:Resistance on the flywheel = 25 NCranking speed = 60 rpmDistance traveled per revolution = 6 metersarrow_forwardThe 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_forward
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