1. A boy on a 20-m high platform throws a ball at a distance of 5 m. At what speed is the ball thrown? (See the diagram) Solution: Given: dx Find : Vox (Vox = 4) Since d = 5 m, then we need to find the time t, yet from d = X y 5 m; horizontal distance dy = 20 m; vertical distance t = √ Hence, Vox = dx t /2(20) 9.8 5m sec. m/s gta, or or t = √ 2dy g 20m 5 m

1. A boy on a 20-m high platform throws a ball at a distance of 5 m. At what speed is the ball thrown? (See the diagram) Solution: Given: dx Find : Vox (Vox = 4) Since d = 5 m, then we need to find the time t, yet from d = X y 5 m; horizontal distance dy = 20 m; vertical distance t = √ Hence, Vox = dx t /2(20) 9.8 5m sec. m/s gta, or or t = √ 2dy g 20m 5 m

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Description: General PhysicsUpvote will be given! Write the solutions legibly. Follow the instructions carefully. revolutions per (a) What is its centripetal acceleration? (b) What force is to be exerted on the string? 1. A boy on a 20-m high platform throws a b

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 84A

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