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physixnot4me
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Hi! I'm beginning a whole new unit in physics, that I'm not that sure of. Any suggestions would be appreciated as to how to tackle these following questions:
1) the pilot of an airplane executes a constant-speed loop the loop maneuver in a vertical circle. the speed of the airplane is 300mi/h, and the radius of the circle is 1200 ft.
(a) what is the pilot's apparent weight at the lowest point if his true weight is 160lb?
(b) what is his apparent weight at the highest point?
(note: his apparent weight is equal to the force exerted by the seat on his body)
2) a small container of water is placed on a carousel inside a microwave oven, at a radius of 12.0 cm from the center. The turntable rotates steadily, turning through one revolution in each 7.25s. What angle does the water surface make with the horizontal?
3) a person stands on a scale in the elevator. as the elevator starts, the scale has a constant reading of 591N. as the elevator later stops, the scale reading is 391N. assume the magnitude of the acceleration is the same starting and stopping, and determine:
(a) the weight of the person (b) the person's mass (c) the acceleration of the elevator
THANKS!
1) the pilot of an airplane executes a constant-speed loop the loop maneuver in a vertical circle. the speed of the airplane is 300mi/h, and the radius of the circle is 1200 ft.
(a) what is the pilot's apparent weight at the lowest point if his true weight is 160lb?
(b) what is his apparent weight at the highest point?
(note: his apparent weight is equal to the force exerted by the seat on his body)
2) a small container of water is placed on a carousel inside a microwave oven, at a radius of 12.0 cm from the center. The turntable rotates steadily, turning through one revolution in each 7.25s. What angle does the water surface make with the horizontal?
3) a person stands on a scale in the elevator. as the elevator starts, the scale has a constant reading of 591N. as the elevator later stops, the scale reading is 391N. assume the magnitude of the acceleration is the same starting and stopping, and determine:
(a) the weight of the person (b) the person's mass (c) the acceleration of the elevator
THANKS!