11/27/2017 11:55 PM 0/10 Print Calculator Periodic Table uestion 9 of 10 Sapling

Question

11/27/2017 11:55 PM 0/10 Print Calculator Periodic Table uestion 9 of 10 Sapling Learning A 70 k football player leaps straight up into the air with no horizontal velocity to catch a pass. He catches the 0.430 kg ball precisely at the peak of his jump, when he is 0.538 meters off the ground. He hits the ground 0.0409 meters away from where he leapt. If the ball was moving horizontally when it was niau ghi how nast was the bai ravelingthe horizontaly when it Number m/s about us careers privacy policyterms of use contact us help 27 F4 F5 F6 ! F7 F8

Explanation / Answer

Let the speed of ball is v m/s

velocity after collision=0.43*v/(70+0.43)=0.0061v

Horizontal distance travelled=0.0409 m

Time taken=sqrt(2*0.538/9.8)=0.33 sec

Distance/time=velocity

0.0409/0.33=0.0061v

We got v=20.23 m/s

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