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Xavier throws a tennis ball to his friend Olaf at a 20° angle relative to the ground with an initial velocity of 18 m/s. The tennis ball travels 30 m until Olaf catches itThe time the tennis ball was in the air, rounded to the nearest hundredth, is s.

2 Answers

2 votes

Answer:

1.77 on ed2020

Step-by-step explanation:

User Karl Cassar
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3 votes

Ball is thrown at an angle of 20 degree with velocity 18 m/s

so first we will find the two components of the velocity


v_x = 18 cos20


v_x = 16.91 m/s

similarly for other component


v_y = 18 sin20


v_y = 6.16 m/s

now the ball will cover horizontal distance of 30 m till it reach to other player

so here we can use the formula of time


x = v_x * t


30 = 16.91 * t


t = (30)/(16.91)


t = 1.77 s

so it will take 1.77 s to reach the other player

User Niiyeboah
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7.5k points