A pitcher throws a fastball with a speed of 45 m/s towards home plate. The batter swings his bat (mbat = 0.94 kg) with a speed of 47 m/s and hits the ball (mball = 0.145 kg) in the opposite direction with a speed of 50 m/s. The time of contact between the bat and the ball is 0.7 milliseconds (0.0007s). 1: What is the change in momentum of the ball in kg*m/? 2: What is the average force in N exerted on the ball by the bat? 3:What is the acceleration of the ball in m/s²?

A pitcher throws a fastball with a speed of 45 m/s towards home plate. The batter swings his bat (mbat = 0.94 kg) with a speed of 47 m/s and hits the ball (mball = 0.145 kg) in the opposite direction with a speed of 50 m/s. The time of contact between the bat and the ball is 0.7 milliseconds (0.0007s). 1: What is the change in momentum of the ball in kg*m/? 2: What is the average force in N exerted on the ball by the bat? 3:What is the acceleration of the ball in m/s²?

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 0.14 kg bead slides on a straight frictionless wire and moves with a velocity of 9.5 m/s to the right. The bead collides with a larger 0.12 kg bead that is initially at rest. After the collision, the smaller bead moves with a velocity of 0.73076923076923 m/s. (use many decimal points in your answer in order to make sure you get it exact) a.What is the large bead's velocity after the collision? b.What is the total kinetic energy of the system of beads after the collision? c.What was the total kinetic energy of the system of beads before the collision?
A ball struck by a bat experiences a change in momentum of 42 kg m/s . If the time of interaction is 0.29 s, what is the magnitude of the average force acting on the ball (in N) ?
A 0.140-kg baseball is dropped from rest from a height of 1.8 m above the ground. It rebounds to a height of 1.4 m. What change in the ball's momentum occurs when the ball hits the ground? 0.117 kg m/s upwards 0.117 kgm/s downwards 1.57 kg m/s upwards 0.350 kg n m/s upwards
A 0.0065 kg bullet is fired into a stationary concrete piece that weighs 3.0 kg. The bullet imbeds into the concrete. The combined speed of the bullet and concrete immediately after the collision is 0.400 m/s. What was the original speed of the bullet?
A rubber ball with a mass of 0.3 kg is dropped onto a steel plate. The ball's velocity just before impact is 4.5 m/s and just after impact is 4.2 m/s. What is the change in the ball's momentum? O 2.61 kg m/s O 4.86 kg m/s 1.37 kg m/s O 3.66 kg m/s
A 30.0-g bullet is fired into a stationary block of wood (m = 3.00 kg). The relative motion of the bullet stops inside the block. The speed of the bullet plus wood combination immediately after the collision is 0.600 m/s. What was the original speed of the bullet? * 20.1 m/s 40.4 m/s 36.8 m/s 30.1 m/s
Problem 1: The figure shows a bullet with mass of 0.159 kg moving horizontally toward a block of mass 1.54 kg that is at rest on a horizontal, frictionless table. The initial speed of the bullet is 348 m/s. The bullet embeds itself into the block and the bullet and block move together as one unit after the collision. 1) What is the speed (in m/s) of the bullet-block combination after the collision? If it took 2.55 ms for the bullet to change speed from 348 m/s to the final speed after impact, then what was the magnitude of the average force (in N) exerted by the block on the bullet during this time?
A non-BYU Idaho student is having a snow ball fight. 'Accidentally' a snowball travelling north at 10.0 m/s hits a bicyclist traveling west at 5.00 m/s. The mass of the snowball is 0.750 kg, and the bicyclist is 55.0 kg. What is her final velocity, a. If the snow ball sticks to the bicyclist? b. If the snow ball bounces off with a speed of 2.0 m/s at an angle 20.0° West of South?
A bullet of mass 18.4 grams is fired with a speed of 341 meters per second toward a wood block of mass 249 grams initially at rest on a very smooth surface. a. What is the change in momentum of the bullet if it becomes embedded in the block? b. What is the change in momentum of the bullet if it ricochets in the opposite direction with a speed of 330 meters per second?
4. A 0.110 kg tennis ball is approaching a tennis player at 23 m when she hits the ball with her racket. She returns the ball with a velocity of 26 by applying a force of 300 N to the ball. 777 a. What is the change in momentum for the ball? b. How long are the ball and racket in contact with each other?
A 0.032 kg bullet strikes a 4.8 kg stationary piece of lumber and embeds itself in the wood. The piece of lumber and bullet fly off together at 7.2 m/s. What was the original speed of the bullet?
6. A 0.25 kg ball bounces off a vertical wall as shown. The speed of the ball just before hitting the wall is 8 m/s and just afterwards is 6 m/s. The collision takes 0.1 sec. a. What is the impulse delivered to the ball? Write in component vector form. y 30° 30 What is the average force that the wall exerts on the ball during the collision? Remember the impulse-momentum relation refers to the net force; you will have to take gravity into account when you do your analysis. c. What is the average force that the ball exerts on the wall during the collision? d. Repeat your calculation for the average y force on the ball using Newton's 2nd law and the free body diagram method. Make sure your answer agrees with your answer for (b).