5. Farmer Bob and his horse Flash jump a 250m wide canyon. The flight through the air takes 5 seconds. Find the initial velocity of Farmer Bob. (that is the magnitude and angle of the initial velocity)

College Physics
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Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 39AP: A rocket is launched at an angle of 53.0 above the horizontal with an initial speed of 100. m/s. The...
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5. Farmer Bob and his horse Flash jump a 250m wide canyon. The flight through the air takes 5
seconds. Find the initial velocity of Farmer Bob. (that is the magnitude and angle of the initial velocity)
6. A place-kicker must kick a football from a point 36.0 m (about 40 yards) from the goal.
Half the crowd hopes the ball will clear the crossbar, which is 5.05 m high. When kicked, the
ball leaves the ground with a speed of 24.0 m/s at an angle of 50.0° to the horizontal.
By how much does the ball clear or fall short (vertically) of clearing the crossbar?
(Enter a negative answer if it falls short.)
a.
Does the ball approach the crossbar (and cross above or beneath it) while still rising
or while falling? Show mathematically and explain.
b.
Transcribed Image Text:5. Farmer Bob and his horse Flash jump a 250m wide canyon. The flight through the air takes 5 seconds. Find the initial velocity of Farmer Bob. (that is the magnitude and angle of the initial velocity) 6. A place-kicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, which is 5.05 m high. When kicked, the ball leaves the ground with a speed of 24.0 m/s at an angle of 50.0° to the horizontal. By how much does the ball clear or fall short (vertically) of clearing the crossbar? (Enter a negative answer if it falls short.) a. Does the ball approach the crossbar (and cross above or beneath it) while still rising or while falling? Show mathematically and explain. b.
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