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vlactawhalm29
29.06.2019 •
Physics
2) the horizontal and vertical components of the initial velocity of a football are 16 m/s and 20 m/s respectively. how long does it take for the football to rise to the highest point of its trajectory?
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Ответ:
2.04 s
Explanation:
Let the initial velocity be v, Angle of projectile be
Then the horizontal component = v cos θ = 16 m/s
Vertical component of velocity = v sin θ = 20 m/s
Time taken to reach the highest point is half the time taken for total flight.
Time for total flight,
Thus, the football takes 2.04 s to rise to the highest point of its trajectory.
Ответ:
Where's the diagram for question 1?