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A 85 kg bicyclist is driving at 5.5 m/s when his attention gets occupied by an event on the side of the path. Unfortunately, that makes him overlook a very low-growing tree branch that hits his head. He bounces backward with a speed of 2.0 m/s. Calculate the impulse acting on the bicyclist.

A 85 kg bicyclist is driving at 5.5 m/s when his attention gets occupied by an event on the side of the path. Unfortunately, that makes him overlook a very low-growing tree branch that hits his head. He bounces backward with a speed of 2.0 m/s. Calculate the impulse acting on the bicyclist.

College Physics
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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A 85 kg bicyclist is driving at 5.5 m/s when his attention gets occupied by an event on the side of the path. Unfortunately, that makes him overlook a very low-growing tree branch that hits his head. He bounces backward with a speed of 2.0 m/s. Calculate the impulse acting on the bicyclist. 5p) A soccer ball with a mass of 0.420 kg is initially moving at a speed of 2.00 m/s. A soccer player kicks the ball, causing a constant acceleration of 80.4 m/s² in the same direction as the ball's motion. Over what distance must the player's foot be in contact with the ball, to give it a final speed of 5.00 m/s? On a frozen pond two friends have fun hurling blocks of wood toward each other. Block A has a mass of 4.00 kg and an initial velocity of 2.00 m/s directed east. Block B has a mass of 6.00 kg and an initial velocity of 2.50 m/s directed west. The two blocks collide head-on. After the collision, Block B is sliding east with 0.40 m/s. Op) What is the velocity (speed and direction) of Block A after the collision? What is the decrease in the total kinetic energy of the two blocks as a result of the collision?
Transcribed Image Text:A 85 kg bicyclist is driving at 5.5 m/s when his attention gets occupied by an event on the side of the path. Unfortunately, that makes him overlook a very low-growing tree branch that hits his head. He bounces backward with a speed of 2.0 m/s. Calculate the impulse acting on the bicyclist. 5p) A soccer ball with a mass of 0.420 kg is initially moving at a speed of 2.00 m/s. A soccer player kicks the ball, causing a constant acceleration of 80.4 m/s² in the same direction as the ball's motion. Over what distance must the player's foot be in contact with the ball, to give it a final speed of 5.00 m/s? On a frozen pond two friends have fun hurling blocks of wood toward each other. Block A has a mass of 4.00 kg and an initial velocity of 2.00 m/s directed east. Block B has a mass of 6.00 kg and an initial velocity of 2.50 m/s directed west. The two blocks collide head-on. After the collision, Block B is sliding east with 0.40 m/s. Op) What is the velocity (speed and direction) of Block A after the collision? What is the decrease in the total kinetic energy of the two blocks as a result of the collision?
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