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a tennis ball is thrown vertically upwards with a speed of v m/s. the height, H metres, reached by the ball is proportional to the square of v. when v = 30m/s, h = 30m work out the value of:

a) H when v = 20m/s

b) v when H = 15 m 

 Jan 4, 2018
 #1
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Answered here :

 

http://web2.0calc.com/questions/please-help_40553

 

 

cool cool cool

 Jan 4, 2018

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