Topic: Kinetic Energy & Work
A baseball ball with a mass of 120 grams, flying at 22 meters
per second. When one of the players catches the ball, his hand
recedes 16 centimeters back. What was the average force the ball
exerted on the player's hand?
Topic: Kinetic Energy & Work A baseball ball with a mass of 120 grams, flying at...
Work-energy: A catcher on a baseball team catches a pitch thrown at 106.6 km/hr. If the baseball has a mass of 0.4 kg, how much work in Joules is done on the ball to bring it to a stop? Be very careful about units. Select one: a. cannot answer without knowing the size of the force on the ball b. -2272.71 Joules c. -11.84 Joules d. -175.36 Joules
1. In Major League Baseball, a typical fastball is pitched at a speed of about 90 mph, or 40 m/s. The batter can perform the remarkable task of completely reversing the direction of this ball and sending it back at about 105 mph, or 47 m/s. Doing this at just the right millisecond to get the ball to go where the batter wants it to go is such an amazing feat that a Yale physicist once jokingly declared that hitting...
PLEASE ONLY USE WORK AND ENERGY FOR THIS QUESTION A slingshot loads a 50g ball bearing into the slingshot and pulls back 0.23 meters before releasing. It shoots the target 10m away, how fast was the bearing moving? The ball came 3 cm inside target, what average force did the target exert in stopping the ball? If info is missing, please state what is missing, and also just how to solve it like the steps. You could just use a...
1-4
using Work-Energy Theorem/KE and PE
thank you!
not 1. An object of mass 0.5kg is projected from ground at 40m/s. Find the work done by gravity on the object, when it is at (a) 10m above the ground -49 Joules (b) 15m above the ground.- 73.5 Joules (c) Find the potential energy of the object in (a) and (b) relative to the ground. PE-mgh 49 J/73.55 2. A block of is sliding down a slope as shown in the...
Please try to answer all questions and show work. Thank
you.
1. A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player's hand. If we neglect air resistance, then the magnitude of the acceleration of the ball is? A. largest the moment after it leaves the players hand. B. smallgst the moment after it leaves the player's...
18. What was the kinetic energy of the arrow before it hit the blo 19. What was the kinetic energy of the arrow/block system after the hit? 20. How much work was done by the arrow penetrating the block? Arrow 21. What was the average force of the arrow on the block during penetration? Mr. Gasomo (Rev 5/15/19) Student Name: 25. The hoop rolls into some sand and stops after 1.50 seconds. What was the torque exerted on the hoop...
A 30.0-kg crate is pushed across a rough floor by a horizontal force of 100 N of kinetic fiction between the crate and the floor is 0.100. If a total of 80.5 1 of work the crate, how far was it moved along the floor? done 21. Find the magnitude of the force ating on a 3.0-kg (assume all units in MKSo-ms cated at -2.0 m inside a potential 22. Which one of the following statements is false? More power...
15) A golf ball of mass 0.045 kg is hit off a tee at a speed of 45 m/s. The golf club was in contact with the ball for 3 ms (3 x 10's). Determine, in N, the average force exerted on the golf ball by the golf club a) 367 b) 675 c) 294 d) 579 Answer 16) Two railroad cars, each of mass 6650 kg and traveling 30 m/s toward each other, collide head-on and come to rest....
6 Google C A0145-kg Baseball Pitched C Physics Archive | April 26, 2 O Google De Mathway | Aigebra Proble ollege.com/course htmltcourseld=154720718HepiD-41aff70e4cbalc2001d438369ab478d10001 CHW7: Linear momentum Problem 7.28 Two bilard balls of equal mass undergo a perfectly elastic head on collision Part A Hone ball's inial speed was 2.40 m/s. and the other's was 4.70 m/s in the opposite direction, what will be their speeds after the collsion? Enter your answers numerically separated by a comma. VOAE4 . 14 Previous Answers...
1. A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in the ground at a distance of 9.54 m from the base of the pole. The pole makes a right angle with the ground. What is the length of each wire? 2. A bug crawls 2.25 m along the base of a wall. Upon reaching a corner, the bug's direction of travel changes from...