A football field is covered with frictionless ice. A 90.0 kg player is skating down the field with a constant velocity v= 4.01i + 3.0j m/s. A 400 g football is thrown towards the player with a straight, horizontal pass. The velocity of the football the moment before it reaches the player's hands is v= 20.0i + 15.0j m/s. The player catches the ball and the two slide along the ice with a final velocity vf. (a) Find the final velocity, of, of the player holding the ball. Write the velocity vector in component form (e.g., Á = Axi+ Ayj). Report your answer to two decimal places. (b) Find the change in kinetic energy of the player + football system. Round your answer to the nearest integer. Note: the x and y directions are in the horizontal plane, as shown below. The x-direction points along the length of the field and the y-direction points along the width of the field. The player and ball do not travel in the vertical direction. FOOTean neld

A football field is covered with frictionless ice. A 90.0 kg player is skating down the field with a constant velocity v= 4.01i + 3.0j m/s. A 400 g football is thrown towards the player with a straight, horizontal pass. The velocity of the football the moment before it reaches the player's hands is v= 20.0i + 15.0j m/s. The player catches the ball and the two slide along the ice with a final velocity vf. (a) Find the final velocity, of, of the player holding the ball. Write the velocity vector in component form (e.g., Á = Axi+ Ayj). Report your answer to two decimal places. (b) Find the change in kinetic energy of the player + football system. Round your answer to the nearest integer. Note: the x and y directions are in the horizontal plane, as shown below. The x-direction points along the length of the field and the y-direction points along the width of the field. The player and ball do not travel in the vertical direction. FOOTean neld

Name: A football field is covered with frictionless ice.A 90.0 kg player is
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: A football field is covered with frictionless ice.A 90.0 kg player is skating down the field with a constant velocity v= 4.01i + 3.0j m/s. A400 g football is thrown towards the player with a straight, horizontal pass. The velocityof the football the

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

A 57.0-g tennis ball is traveling straight at a player at 19.0 m/s. The player volleys the ball straight back at 22.0 m/s. If the ball remains in contact with the racket for 0.060 0 s, what average force acts on the ball? 18.05 N 20.9 N 38.95 N 2.85 N O 57 N
an iron ball with a mass of 67.5 kg is traveling with an initial velocity of 20.5 m/s. the ball is hit with a hammer, which remains in contact with the ball for 0.20 sec. how much force must the hammer hit the ball with to cause it to change directions?
A skater of mass 72.5 kg initially moves in a straight line at a speed of 4.80 m/s. The skater approaches a child of mass 35.0 kg, whom he lifts on his shoulders. Assuming there are no external horizontal forces, what is the skater's final velocity?
Kyle, a 95.0 kg football player, leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.430 kg ball precisely at the peak of his jump, when he is 0.538 meters off the ground. He hits the ground 0.0333 metersaway from where he leapt. If the ball was moving horizontally when it was caught, how fast was the ball traveling? ball's speed: ? m/s
A block of mass m1 = 14 kg slides along a horizontal surface (with friction, μk = 0.27) a distance d = 2.5 m before striking a second block of mass m2 = 8.25 kg. The first block has an initial velocity of v = 9.75 m/s. Assuming that block one stops after it collides with block two, what is block two's velocity after impact in m/s? How far does block two travel, d2 in meters, before coming to rest after the collision?
A 35.0 g bullet strikes a 5.0 kg stationary wooden block and embeds itself in the block. The bullet and block fly off together at 8.6 m/s. What was the original velocity of the bullet? A 1.24 m/s B 9.83 m/s 144 m/s D 1240 m/s O O O O
A 180-g billiard ball is shot toward an identical ball at velocity vi = 6.90 m/s. The identical ball is initially at rest. After the balls hit, one of them travels with velocity v1, f = (1.80 + 2.22) m/s. What is the velocity of the second ball after the impact? Ignore effects of friction during this process. (Express your answer in vector form.) v2, f = m/s
A cart filled with sand rolls at a speed of vcart = 1.4 m/s along a horizontal path without friction. A ball of mass m = 2.6 kg is thrown with a horizontal velocity of vball = 9.8 m/s toward the cart as shown in the figure below. The ball gets stuck in the sand. What is the velocity of the cart after the ball strikes it? The mass of the cart is 14 kg. (Assume the positive xdirection is to the right. Express your answer in vector form.) ?m/s
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-
A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.490 m/s. The total mass of the sled, man, and rock is 94.0 kg. The mass of the rock is 0.270 kg and the man can throw it with a speed of 15.5 m/s. Both speeds are relative to the ground. Determine the speed of the sled (in m/s) if the man throws the rock forward (i.e., in the direction the sled is moving). m/s Determine the speed of the sled (in m/s) if the man throws the rock directly backward. m/s
A cart filled with sand rolls at a speed of vcart = 1.4 m/s along a horizontal path without friction. A ball of mass m = 2.4 kg is thrown with a horizontal velocity of vball = 9.5 m/s toward the cart as shown in the figure below. The ball gets stuck in the sand. What is the velocity of the cart after the ball strikes it? The mass of the cart is 11 kg. (Assume the positive x direction is to the right. Express your answer in vector form.)
An amateur golfer swings a golf club, striking a golf ball that has a mass of 55.0 g. The club is in contact with the ball for only 0.00390 s. After the collision, the ball leaves the club at a speed of 36.0 m/s. What is the magnitude of the average force (in N) exerted on the ball by the club?