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)...

See similar textbooks

Similar questions

An astronaut lands on a newly-discovered planet (without an atmosphere). As an experiment, she throws vertically upwards a pure vanadium sphere of radius 2.0 cm and density 5.5 × 103 kg m3 with an initial speed of 3.0 ms 1. The point of release is 1.2 m above the ground. She observes the sphere to travel 4.8 m before it starts falling to the ground. Calculate the kinetic energy of the projectile just as it hits the ground.
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. First he tries to throw a rope to his fellow astronaut, but the rope is too short. In a last ditch effort, the astronaut throws his bag of tools in the direction of his motion, away from the space station. The astronaut has a mass of ma = 124 kg and the bag of tools has a mass of m = 13.0 kg. If the astronaut is moving away from the space station at Vj = 1.20 m/s initially, what is the minimum final speed vpf of the bag of tools with respect to the space station that will keep the astronaut from drifting away forever? Ub.f = m/s
Rank these four objects according to the questions asked.Object A: m= 5.0 kg v=4.0 m/s h=2.0 mObject B: m= 10.0 kg v=2.0 m/s h=3.0 mObject C: m= 1.0 kg v=5.0 m/s h=5.0 mObject D: m= 5.0 kg v=2.0 m/s h=4.0 m Decreasing KE option 1. D, C, B, A option 2. A, B, C, D option 3. B, C, D, A option 4. A, D, C, B
A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough strength so that it doesn't break while swinging. The stunt performer's mass is 86.0 kg, the vine is 11.0 m long, and the speed of the stunt performer at the bottom of the swing has been determined to be 8.20 m/s. What is the minimum tension force (in N) the vine must be able to support without breaking?
At the instant of the figure, a 1.00 kg particle P has a position vector 7 of magnitude 5.40 m and angle 01 = 41.0° and a velocity vector v of magnitude 4.50 m/s and angle 62 = 32.0°. Force F ,of magnitude 6.20 N and angle 03 = 32.0° acts on P. All three vectors lie in the xy plane. About the origin, what are the magnitude of (a) the angular momentum of the particle and (b) the torque acting on the particle? F (a) Number i Units (b) Number i Units
Zero, a hypothetical planet, has a mass of 4.7 x 1023 kg, a radius of 3.2 x 106 m, and no atmosphere. A 10 kg space probe is to be launched vertically from its surface. (a) If the probe is launched with an initial kinetic energy of 5.0 x 107 J, what will be its kinetic energy when it is 4.0 x 106 m from the center of Zero? (b) If the probe is to achieve a maximum distance of 8.0 x 106 m from the center of Zero, with what initial kinetic energy must it be launched from the surface of Zero? (a) Number: i Units: (b) Number: i Units:
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 99.5 kg. The mass of the rock is 0.277 kg. Initially the wagon is rolling forward at a speed of 0.488 m/s. Then the person throws the rock with a speed of 16.6 m/s. Both speeds are relative to the ground. Find the speed of the wagon after the rock is thrown (a) directly forward in one case and (b) directly backward in another. (a) vi (b) v-
You are working for the Highway Department. In mountainous regions, highways sometimes include a runaway truck ramp, and you are asked to help with the design of such a ramp. A runaway truck ramp is often a lane of gravel adjacent to a long downhill section of roadway where trucks with failing brakes may need assistance to stop. Working with your supervisor, you develop a worst-case scenario: a truck with a mass of 4.50 x 104 kg enters a runaway truck lane traveling at 31.1 m/s. Assume that the maximum constant value for safe acceleration of the truck is -5.00 m/s². Any higher magnitude of acceleration increases the likelihood that semi-trailer rigs could jackknife. Your supervisor asks you to advise her on the required length (in m) of a runaway truck lane on a flat section of ground next to the roadway. m Need Help? Read It
A rocket motor is undergoing a "bench test." It is attached to a fixed support by four large springs of constant 10^6 N/m. The motor burns fuel at a rate of 50 kg/s. When the motor is running the springs are observed to stretch 1.5 cm. Determine the exhaust speed of the burned fuel.
Rank these four objects according to the questions asked.Object A: m= 5.0 kg v=4.0 m/s h=2.0 mObject B: m= 10.0 kg v=2.0 m/s h=3.0 mObject C: m= 1.0 kg v=5.0 m/s h=5.0 mObject D: m= 5.0 kg v=2.0 m/s h=4.0 m Increasing KE option 1. D, C, B, A option 2. A, B, C, D option 3. B, C, D, A option 4. A, D, C, B
Caroline takes her baby sister Hannah to the neighborhood park and places her in the seatof the children’s swing. Caroline pulls the L = 1.8 m long chain back to make an angle θ = 26◦ withrespect to the vertical and lets 14 kg Hannah (swing mass included) go. (a) Determine Hannah’s speed at the lowest point in the trajectory. (b) What is the tension in the swing chain at this low point? Assume the chain itself has negligible mass.
Problem 20: Assume you have two vectors, A = 7.1i + 3.9j and an unknown vector B with length 3.2. In this problem, you must assume that both components of B are positive, Bx > 0, and By > 0. Part (a) If the scalar product of these two vectors is A⋅B = 16.3, what is the x-component of the vector B? You may assume that Bx > 0. Part (b) What is the y-component of the vector B? Again, assume By > 0.