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Serving at a speed of 170 km/h, a tennis player hits the
Chapter 3, Problem 37(choose chapter or problem)
Serving at a speed of 170 km/h, a tennis player hits the ball at a height of 2.5 m and an angle θ below the horizontal. The service line is 11.9 m from the net, which is 0.91 m high. What is the angle θ such that the ball just crosses the net? Will the ball land in the service box, whose out line is 6.40 m from the net?
Questions & Answers
QUESTION:
Serving at a speed of 170 km/h, a tennis player hits the ball at a height of 2.5 m and an angle θ below the horizontal. The service line is 11.9 m from the net, which is 0.91 m high. What is the angle θ such that the ball just crosses the net? Will the ball land in the service box, whose out line is 6.40 m from the net?
ANSWER:Step 1 of 5
We have to find the angle using given data.
Given
x = 211.9 m
y = 2.5-0.9 = 1.4 m
g = -9.8 m/
v = 170 km/h