Sumali sa IDNStudy.com at makuha ang mga sagot ng eksperto. Sumali sa aming interactive na platform ng tanong at sagot para sa mabilis at eksaktong tugon mula sa mga propesyonal sa iba't ibang larangan.

A long jumper leaves the ground at an angle of 20.0 degrees above the horizontal and at a speed of 11.0 m/s. how far does he jump in the horizontal direction

Sagot :

Answer:

Vertical initial velocity = 11 sin 20 = 3.76 m/s

Horizontal velocity = 11 cos20 = 10.34 m /s

Vertical final Velocity = 0

Time of flight = 2 * ( 11 sin 20 ) / 9.8 = 0.77 s .

Range = 0.77* 11 cos20= 7.96 m

Height = H = u^2/ 2g = 3.76^2/ ( 2*9.8) = 0.72 m