a football kicker is attempting a feild goal from 44m out. Theball is kicked and

Question

a football kicker is attempting a feild goal from 44m out. Theball is kicked and just clears the bar with a time of 3.5s. if theangle of the kick was 55 degrees, a) what was the initial speed of the ball? b) what is the height of the bar above the ground? please show all equations and work thank you a football kicker is attempting a feild goal from 44m out. Theball is kicked and just clears the bar with a time of 3.5s. if theangle of the kick was 55 degrees, a) what was the initial speed of the ball? b) what is the height of the bar above the ground? please show all equations and work thank you

Explanation / Answer

Horizontal distance S = 44 m time t = 3.5 s angle = 55 degrees (a). Horizontal speed u = S / t                                     =12.571 m / s So, Initial speed of the ball v = u / cos       Since horizontalspeed u = v cos                                             = 21.91 m / s (b). height of the bar H = ( v sin ) ^ 2 /2g                                     =16.44 m

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