Gen Combo Ll Basic Biomechanics; Connect Ac; Maxtraq Software Ac
8th Edition
ISBN: 9781264013876
Author: Hall
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 10IP
A 0.5 kg ball is kicked with a force of 40 N. What is the resulting acceleration of the ball?
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2. a) Label the system provided below, including the reference frame, moment arms and vector forces
with the information provided.
Internal moment arm = 4cm +0.04m
External moment arm relative
to the segment weight = 25cm 0.25m
External moment arm relative
to the load weight = 45cm 40.45m
Segment weight = 50 N
Load weight = 100 N
Lower leg segment angle relative
to horizontal plane = 45°
Quadriceps tendon angle = 45°
Axis of
rotation
MF
SW
LW
2b) Using the figure in 2a., calculate the external torque of the system relative to the normal
component of segment and load weights listed above.
2c) Calculate the amount of both the tangential component of the muscle force and the muscle force
itself required to keep this system in a state of static equilibrium.
A) Describe the difference between strength and power during a squat. Provide a quantitative example that illustrates the difference.
B) During a squat, the weight you have on your shoulders has a certain amount of gravitational potential energy. As you squat down and come to a stop at the bottom of the squat, some of that energy is lost. Where does it go?
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
Chapter 1 Solutions
Gen Combo Ll Basic Biomechanics; Connect Ac; Maxtraq Software Ac
Ch. 1 - Write a brief discussion about how knowledge of...Ch. 1 - Prob. 4IPCh. 1 - Write a summary list of the problem-solving steps...Ch. 1 - Prob. 6IPCh. 1 - Step by step, show how to arrive at a solution to...Ch. 1 - Solve for x in each of the equations below. Refer...Ch. 1 - Two schoolchildren race across a playground for a...Ch. 1 - A 0.5 kg ball is kicked with a force of 40 N. What...Ch. 1 - When attempting to balance your checkbook, you...Ch. 1 - Prob. 3AP
Ch. 1 - Wendell invests 10,000 in a stock portfolio made...Ch. 1 - The hypotenuse of right triangle ABC (shown here)...Ch. 1 - In triangle DEF, side E is 4 cm long and side F is...Ch. 1 - An orienteer runs 300 m north and then 400 m to...Ch. 1 - Prob. 8APCh. 1 - Prob. 9APCh. 1 - A sailboat heads north at 3 m/s for 1 hour and...
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- 3 E there to search D Calculate the ankle torque during initial gait contact from the following data set to 1 decimal place. NOTE if your answer is negative put the negative sign in the answer! FZ 765 N 4 с Fx-290 N CoP z 0 m Cop x 0.51 m Ankle z 0.074 m Ankle x 0.62 m Answer Check R F 96 5 Bi T G B 6 y H N U J 8 M 1 hp к Ji C 9 9 P O alt gr O P ? ctri 910- C > pri se 1 GBP/AUD-0.41% pause # ← tock Next page 7 11:26 02/12/2023 1 end ☐ po up 5 Carrow_forwardNonearrow_forwardGiven 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_forwardThe 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) coordinatearrow_forward1875 N is reduced by 15% by tissues of the ankle joint and 45% by the tissues of the knee joint, how much force is transmitted to the femurarrow_forwardList the three types of van der Waals forces in decreasing order of strength.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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