1- A ball is launched upward at 25^◦ angle at V _◦ = 10 m/s form a height of 60.0 m, at the edge of a sheer cliff. The projectile falls on the ground at distance X from the base of the building. 

                                                                                                                                                                                                                           

                       

             

                       

 

 

Calculate the following:

a)    Initial velocity in x-direction: V_{◦ x}?

 

 

 

b)    Initial velocity in y-direction: V_{◦ y}?    

 

 

 

c)    How long does it take the ball to reach the ground?

 

 

 

 

 

 

d)    How far from the building does it land?

 

 

 

 

 

 

V_{◦ x}= V_◦ Cos ɵ                                     

V◦ _y= V◦  Sin ɵ

                Y                  V

 

                             ɵ = 30 ^{◦                X}

V _y = V_{◦ y} + a t

V²Â _y= V ²_{â—¦ y} + 2 g y                                                        

Y = V_{â—¦ yÂ} t + ½ g t^2                  g = - 9.8 m/s²

X= V_{◦ x} t

 

 A X²Â + B X + C = 0    X = 

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Status NEW Posted 17 Jun 2017 02:06 AM My Price 7.00

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