BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 10, Problem 7IP
A soccer ball is kicked with an initial horizontal speed of 5 m/s and an initial vertical speed of 3 m/s. Assuming that projection and landing heights are the same and neglecting air resistance, identify the following quantities:
a. The ball’s horizontal speed 0.5 s into its flight
b. The ball’s horizontal speed midway through its flight
c. The ball’s horizontal speed immediately before contact with the ground
d. The ball’s vertical speed at the apex of the flight
e. The ball’s vertical speed midway through its flight
f. The ball’s vertical speed immediately before contact with the ground
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
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/time
A scientist was investigating if differences in the frictional work performed on a model car can change
depending on its mass (in grams) and whether the car moves up or down an inclined plane. They decided to
measure the amount of frictional force experienced by the model car and the distance it traveled in meters.
The scientists were able to evaluate the frictional work using the following data.
Mass (g)
Distance (m) Force
Work Done by Friction (J)
car going up the incline
100
39
0.063
2.457
car going down the incline 70
39
0.2309 ?
It is known that the relationship between force and distance determines the work done by friction (W+).
W₁ = fd
Wf work done by friction
f = force
d = distance
Question:
How much work done by friction was exerted on the car as it moved down the inclined plane?
You may use a calculator.
1
2.457
9.005
11.46
16.16
PREVIOUS
FINISH
The data was collected at 100 frames/second. Calculate the velocity and acceleration for each of the joints for the X(horizontal)coordinate. Also, graph the displacement of all three joints (ankle, knee and hip) for the Y (vertical) coordinate
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, bioengineering and related others by exploring similar questions and additional content below.Similar questions
- Given the following ankle and knee coordinates calculate the partial internal knee angle to 1 decimal place Ankle z 0.129 m Ankle x 0.37 m Knee z 0.409 m Knee x 0.522 m Answer: re to search 8: T G B N W 8 M 9 O Pa P 4 3°C℃ Partly cloudyarrow_forwardWrite Cif only statement A is correct, Hif only statement B is correct, Eif both statements are correct, Mif both statements are incorrect. A. For the Lineweaver-Burk plot, the slope of the line reflects the ratio between the maximum velocity and the Michaelis constant. B. Meanwhile, the y-intercept is the maximum velocity.arrow_forwardIdentify the apparent temperature when the air temperature is -25 • F and the winspeed is 20 mpharrow_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_forwardIdentify the following on the image below: А. В. С. D. F. G. H. FE. А. F. В. G. С. H. D.arrow_forwardSuppose 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_forwarda cat runs across a road that is 9 meters (m) wide. it covered this distance in 3 seconds (s). what is the speed of the car?arrow_forwardIf a person has a vertical force of 10.25N with a nylon strap of a 2.5cm of width and length of 10cm in the trapezius muscle, how much time does the person need to feel pain in the muscle? How much time is needed to injure or damage the muscle? Must show every mathematical process.arrow_forward1. What is the MET level of Joan who runs at 5.1 mph, 2.7% grade? 2. Joan (in problem #1) lowers her speéd to 3.0 mph. In order to maintain the same MET level, what should the grade be on the treadmill?arrow_forwardTotal compressive knee forces range between O 1-2 %BW O 2-4 %BW 3-5 %BW 0.5-1.5 %BWarrow_forwardThese figures show that: S Vor (1-min¹) 30 A 2.5 20 1.5 1.0 0.5 (50) 10 Concentric Eccentric Exercise rate (100) 20 (150) Integrated EMG (counts min) B 600 400 200 (50) 30 10 Mean torque on pedals (Nm) (100) Concentric 20 Exercise rate (200) (150) Eccentric 30 O concentric contractions require more oxygen and more EMG than eccentric contractions O concentric contractions are easier to perform than eccentric contractions O eccentric contractions place a greater demand on the cardiovascular and nervous systems compared to concentric contractions O eccentric contractions use less oxygen but more EMG than concentric contractionsarrow_forwardDirection: Convert the following. Show your computation/solution. 1. 9 inches to cm 2. 5 feet 5 inches to cm 3. 5 feet 9 inches to meter 4. 99 kg to lbs 5. 120 lbs to kgarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
Chapter 7 - Human Movement Science; Author: Dr. Jeff Williams;https://www.youtube.com/watch?v=LlqElkn4PA4;License: Standard youtube license