SA skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches terminal speed at some time after jumping from a plane. Since she is moving at a consta that time until her chute opens, we conclude from the work-kinetic energy theorem tha interval
SA skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches terminal speed at some time after jumping from a plane. Since she is moving at a consta that time until her chute opens, we conclude from the work-kinetic energy theorem tha interval
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5 A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant
terminal speed at some time after jumping from a plane. Since she is moving at a constant velocity from
that time until her chute opens, we conclude from the work-kinetic energy theorem that, over that time
interval
the work done by gravity equals the negative of the work done by air resistance
the work done by gravity is zero
the work done by air resistance is zero
er kinetic energy increases
Transcribed Image Text:7A particle moves parallel to the x-axis. The net force on the particle increases with x according to the
formula Fx = (120 N/m)x, where the force is in newtons when x is in meters. How much workidoes this
force do on the particle as it moves from x = 0 to x = 0.50 m?
7.53
60J
30J
153
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