A ball is kicked from a location (7, 0, -6) (on the ground) with initial velocity (-10, 17, -6) m/s. The ball's speed is low enough that air resistance is negligible.(a) What is the velocity of the ball 0.5 seconds after being kicked? (Use the Momentum Principle!)✓ =m/sX(b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.5 seconds after it is kicked?O the arithmetic average of the initial and final velocitiesO the final velocity of the ballO the initial velocity of the ball(c) What is the average velocity of the ball over this time interval?Vavg =m/s(d) Use the average velocity to find the location of the ball 0.5 seconds after being kicked.Now consider a different time interval: the interval between the initial kick and the moment when the ball reaches its highest point. We want to find how long it takes for the ball to reach this point, and how high the ball goes.(e) What is the y-component of the ball's velocity at the instant when the ball reaches its highest point (the end of this time interval)?Vyf =m/s(f) Fill in the missing numbers in the equation below (update form of the Momentum Principle: mvyf = myyj + Fnet, yat).m+ -mgAtm(g) How long does it take for the ball to reach its highest point?At =S(h) Knowing this time, first find the y-component of the average velocity during this time interval, then use it to find the maximum height attained by the ball.Ymax =mNow take a moment to reflect on the reasoning used to solve this problem. You should be able to do a similar problem on your own, without prompting. Note that the only equations needed were the Momentum Principle and the expression for thearithmetic average velocity.

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A ball is kicked from a location (7, 0, -6) (on the ground) with initial velocity (-10, 17, -6) m/s. The ball's speed is low enough that air resistance is negligible. (a) What is the velocity of the ball 0.5 seconds after being kicked? (Use the Momentum Principle!) V m/s x (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.5 seconds after it is kicked? the arithmetic average of the initial and final velocities O the final velocity of the ball O the initial velocity of the ball (c) What is the average velocity of the ball over this time interval? Vavg= m/s (d) Use the average velocity to find the location of the ball 0.5 seconds after being kicked. i- m

A ball is kicked from a location (7, 0, -6) (on the ground) with initial velocity (-10, 17, -6) m/s. The ball's speed is low enough that air resistance is negligible. (a) What is the velocity of the ball 0.5 seconds after being kicked? (Use the Momentum Principle!) V m/s x (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.5 seconds after it is kicked? the arithmetic average of the initial and final velocities O the final velocity of the ball O the initial velocity of the ball (c) What is the average velocity of the ball over this time interval? Vavg= m/s (d) Use the average velocity to find the location of the ball 0.5 seconds after being kicked. i- m

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section6.3: Relative Velocity

Problem 27PP

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