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

Oliver Bernard

4 January, 17:02

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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Pablo · 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.