1. A ball is projected with an initial upward velocity component of 80 ft/s and a horizontal velocity component of 100 ft/sec. (a) Find the position and velocity of the ball after 2 sec; 3 sec; 6 sec. (b) How long a time is required to reach the highest point of the trajectory? (c) How high is this point?
1. A ball is projected with an initial upward velocity component of 80 ft/s and a horizontal velocity component of 100
ft/sec. (a) Find the position and velocity of the ball after 2 sec; 3 sec; 6 sec. (b) How long a time is required to reach
the highest point of the trajectory? (c) How high is this point? (d) How long a time is required for the ball to return
to its original level? (e) How far has it traveled horizontally during this time?
2. A golf ball is driven with a velocity of 200 ft/s at an angle of 37o above the horizontal. It strikes a green at a horizontal
distance of 800 ft from the tee. (a) What was the elevation of the green above the tee? (b) What was the velocity
of the ball when it struck the green?
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