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In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, suffering only minor injuries. Assume that his speed at impact was 58 m/s (terminal speed), that his mass (including gear) was 80 kg, and that the force on him from the snow was at the survivable limit of 1.2*10^5 N.
(a) What is the minimum depth of snow that would have stopped him safely?
___m
(b) What is the magnitude of the impulse on him from the snow?
___kg·m/s
A merry-go-round (carousel) with a moment of inertia of 594 kg·m2, is initially rotating horizontally at 2 rad/s about a frictionless axis through its center.
How much time is necessary to catch the car
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A stream of water strikes a stationary turbine blade horizontally. The incident stream has a velocity of +16m/s whilst the exit has a velocity of -16m/s. mass of water per second that strikes the blade is 30kg/s.find the magnitude of average force ex..
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A defibrillator consists of a 16.7-µF capacitor that is charged to 9.0 kV. (a) If the capacitor is discharged in 2.0 ms, how much charge passes through the body tissues? C (b) What is the average power delivered to the tissues?
A very light rigid rod of length 0.600 m extends straight out from one end of a metre long rod of mass M. Determine the period of oscillation of the system
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