Question

+-12 points SerPSE 10 4.3.OP.013.Mi. 0/6 Submissions Used My Ines man rou. A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 23.2 m/s at an angle of 48.0° to the horizontal. (a) By how much does the ball clear or fall short of clearing the crossbar? (Enter a negative answer if it falls short.) (b) Does the ball approach the crossbar while still rising or while falling? rising falling Need Help? Read it Master it

Answer 1

Here initial velocity o= 23.2 m/s angle of projection or yoo Now, we have the ear of motion, gu² . y = x tant - I el costo Now, se = 36 m. 9.8 x 36² 2 x 203. 22 cos 48° y = 36xton 480 = 13.63 m . .. The light of ball above the bar is. 13.63 m - 3.05 = 10.58m. (b) while falling the ball cross the bar