Gen Combo Ll Basic Biomechanics; Connect Ac; Maxtraq Software Ac
8th Edition
ISBN: 9781264013876
Author: Hall
Publisher: McGraw-Hill Education
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Chapter 11, Problem 10IP
A tennis racquet swung with an angular velocity of 12 rad/s strikes a motionless ball at a distance of 0.5 m from the axis of rotation. What is the linear velocity of the racquet at the point of contact with the ball? (Answer: 6 m/s)
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Based 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 meters
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 second2
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
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Chapter 11 Solutions
Gen Combo Ll Basic Biomechanics; Connect Ac; Maxtraq Software Ac
Ch. 11 - The relative angle at the knee changes from 0 to...Ch. 11 - Identify the angular displacement, the angular...Ch. 11 - How many revolutions are completed by a top...Ch. 11 - A kickers extended leg is swung for 0.4 s in a...Ch. 11 - The angular velocity of a runners thigh changes...Ch. 11 - A tennis racquet swung with an angular velocity of...Ch. 11 - A 1.2-m golf club is swung in a planar motion by a...Ch. 11 - David is fighting Goliath. If Davids 0.75-m sling...Ch. 11 - A baseball is struck by a bat 46 cm from the axis...Ch. 11 - A polo players arm and stick form a 2.5-m rigid...
Ch. 11 - Explain how the velocity of the ball in Problem 4...Ch. 11 - A majorette in the Rose Bowl Parade tosses a baton...Ch. 11 - A cyclist enters a curve of 30-m radius at a speed...Ch. 11 - A hammer is being accelerated at 15 rad/s2. Given...Ch. 11 - A speed skater increases her speed from 10 m/s to...
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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
- 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 metersarrow_forward72. Find J and K in the rotational system shown in Figure P4.18 to yield a 30% overshoot and a sett- ling time of 3 seconds for a step input in torque. [(Section: 4.6] 000 K FIGURE P4.18arrow_forwardDefine the following parameters that can be assessed via isokinetic dynamometry (attempt to use your own words after reviewing data sheet): Peak Torque Time to peak torque Angle of peak torque Torque at 0.2 seconds Peak torque/body weight Total work Work fatigue (Fatigue Index) Average powerarrow_forward
- What was the ball’s acceleration on the inclined plane described above? 2.0 meters per second2 B. 3.0 meters per second2 4.0 meters per second2 6.0 meters per second2 8.0 meters per second2arrow_forwardSolve using Instantaneous Center of Zero Velocityarrow_forwardAn airplane flying directly eastward at a constant speed travels 293 km in 2.0 h. (a) what is the average velocity of the plane? (b) what is the instantaneous velocity?arrow_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_forwardUsing the above “mean-speed theorem”, calculate the average velocity of a car with constant acceleration from 0 km/hour (initial speed) to 80 km/hour (final speed) over a 5-minute period of time. average velocity over 5 minutes = 16 kilometers/hour average velocity over 5 minutes = 20 kilometers/hour average velocity over 5 minutes = 24 kilometers/hour average velocity over 5 minutes = 32 kilometers/hour average velocity over 5 minutes = 40 kilometers/hourarrow_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_forward
- Calculate 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 “mean-speed theorem” for calculating average velocity under constant acceleration, developed by Thomas Bradwardine and the Mertonian Calculators at Oxford University, is expressed algebraically as: density = weight/volume (m1)(v1) = (m2)(v2) C. (vm) = 1/2 (v0 + vf) s = (v0)(t) + 1/2 (a)(t2) velocity = distance/timearrow_forwardplease provide an example to solve for Velocity using the Michaelis-Menten Equation ?arrow_forward
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