Sepak Takraw, known as kick volleyball, is a traditional sport played in Southeast Asia. Players use their feet, knees, and chest to hit a ball over a net, and they score points if their opponents do not return the ball. The balls are traditionally woven from palm vines, and they have a radius of 8 cm, a cross sectional area of 0.02 m², and mass of 0.18 kg. For this problem, assume the ball is kicked with a speed of 22 m/s. Multiple Choice Questions 5) What is the drag force on the 22 m/s ball? Assume they are at sea level and the drag coefficient is 0.35. a) I N c) 3 N b) 2 N d) 4 N 6) If the ball starts from rest and the player kicks it to a speed of 22 m/s, what is the average force of the kick? Assume their foot is in contact with the ball for 20 ms (2 x 10-² s). a) 100 N b) 200 N e) 5 N 1) 6 N c) 300 N d) 400 N e) 500 N f) 600 N

Sepak Takraw, known as kick volleyball, is a traditional sport played in Southeast Asia. Players use their feet, knees, and chest to hit a ball over a net, and they score points if their opponents do not return the ball. The balls are traditionally woven from palm vines, and they have a radius of 8 cm, a cross sectional area of 0.02 m², and mass of 0.18 kg. For this problem, assume the ball is kicked with a speed of 22 m/s. Multiple Choice Questions 5) What is the drag force on the 22 m/s ball? Assume they are at sea level and the drag coefficient is 0.35. a) I N c) 3 N b) 2 N d) 4 N 6) If the ball starts from rest and the player kicks it to a speed of 22 m/s, what is the average force of the kick? Assume their foot is in contact with the ball for 20 ms (2 x 10-² s). a) 100 N b) 200 N e) 5 N 1) 6 N c) 300 N d) 400 N e) 500 N f) 600 N

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

Scenario #3:
Sepak Takraw, known as kick volleyball, is a traditional sport played in Southeast Asia. Players use their feet,
knees, and chest to hit a ball over a net, and they score points if their opponents do not return the ball. The balls
are traditionally woven from palm vines, and they have a radius of 8 cm, a cross sectional area of 0.02 m², and
mass of 0.18 kg. For this problem, assume the ball is kicked with a speed of 22 m/s.
Multiple Choice Questions
5) What is the drag force on the 22 m/s ball? Assume they are at sea level and the drag coefficient is 0.35.
a) I N
b) 2 N
c) 3 N
d) 4 N
6) If the ball starts from rest and the player kicks it to a speed of 22 m/s, what is the average force of the kick?
Assume their foot is in contact with the ball for 20 ms (2 x 10-2 s).
a) 100 N
b) 200 N
e) 5 N
1) 6 N
c) 300 N
d) 400 N
500 N
e)
f) 600 N
Short Answer Question
Sepak Takraw players are remarkably athletic and can jump to impressive heights in order to kick the ball.
Suppose a player kicks a ball from an initial height of 1.5 m above the ground with an initial velocity of 22 m/s
at 14° above the horizontal. For this question, you may ignore air drag and assume the ball lands on the ground.
• Sketch a motion diagram for this projectile.
• Sketch an initial velocity vector and determine the x and y components of V;.
• How much time does the ball spend in the air before hitting the ground?

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