During soccer practice, maya kicked a soccer ball 37° off the ground at 25 m/s. at t = 2.2 s after she kicked the ball, was it moving upward in its trajectory, downward in its trajectory, or was it at the apex of its trajectory?

Question

Physics

Katrina Edwards

13 April, 01:50

During soccer practice, maya kicked a soccer ball 37° off the ground at 25 m/s. at t = 2.2 s after she kicked the ball, was it moving upward in its trajectory, downward in its trajectory, or was it at the apex of its trajectory?

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Dale · Answer 1

Let's calculate the time of flight first. The time at which the football leaves the ground would give us an idea about the trajectory. t = 2v0 sin theta / g t = 2 * 25 * sin (37) / 9.8 t = 50 sin 37/9.8 t = 3.21s Since Maya's soccer ball time of flight is 3.21s, clearly the trajectory is upwards. If the time of flight, t is lower than the stipulated time, 2.2 then clearly the ball has gotten to the apex and is decelerating.