Question
Asked Sep 10, 2019

A ball is kicked up at an angle of 30o from the ground at 20 m/s. (A) How long is the ball before it his the ground? (B) How high up doe the ball go? (C) What is the balls range? Assume no significant air resistance. Show how you arrive at your answers.

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Expert Answer

Step 1
Motion ot the ball will be as
shown in the figusic belao
6-20mls
77
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Motion ot the ball will be as shown in the figusic belao 6-20mls 77

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Step 2
fart aHu (ong the bal will be in ain. Time of flight)
Time of flight T)2 sino
2 (Ao) sin(30)
2-038S
81
Ball coil be 20 38 seconds in aiv bebre rt hits the ground
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fart aHu (ong the bal will be in ain. Time of flight) Time of flight T)2 sino 2 (Ao) sin(30) 2-038S 81 Ball coil be 20 38 seconds in aiv bebre rt hits the ground

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Step 3
Poot B Houw high dees the bau go (maximum height
Vo sino
20K sin (30
Hmax
29
2x981
Hmax
5.096 meters
Maximum height the bal goer is 5-0t6 m
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Poot B Houw high dees the bau go (maximum height Vo sino 20K sin (30 Hmax 29 2x981 Hmax 5.096 meters Maximum height the bal goer is 5-0t6 m

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