An athlete performing a long jump leaves the ground at a 27.0° angle and lands 7.80...
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An athlete performing a long jump leaves the ground at a 27.0° angle and lands 7.80 m away. (a) What was the takeoff speed? (b) If this speed were increased by just 5.0%, how much longer would the jump be? |
Homework Answers
a)R = [v2sin(2θ)]/g
7.8 = [v2sin(2*27)]/9.8 => v= 9.72m/s
b) v = 9.72+ (9.72*0.05) = 10.206m/s
R=[v2sin(2θ)]/g = [10.2062sin(2*27)]/9.8 = 8.6m
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An athlete performing a long jump leaves the ground at a 27.0°
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