A 83.2 kg person is standing inside an elevator. The elevator is moving upward at 2.54 m/s and is decreasing speed at a rate of 1.82 m/s^2. What is the normal force that is acting on the person?
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A 83.2 kg person is standing inside an elevator. The elevator is moving upward at 2.54 m/s and is decreasing speed at a rate of 1.82 m/s^2. What is the normal force that is acting on the person?
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- A man inside the elevator stands in a weighing scale and weighs 120 N when stationary. What will be its apparent weight if the elevator is accelerating downward with a magnitude of 7 m/s^2.a. FN = 53.234 Nb. FN = 69.435 Nc. FN = 34.373 Nd. FN = 45.345 NAn astronaut moves in space with a constant speed. If he is far from the influence of gravity of any star or planet, what is the minimum force required in order for him to keep on moving? a) force equal to its weight b) force equal to its mass c) force depending on its speed d) zeroIn an 800 kg elevator travels a 75 kg passenger carrying a 3 kg package in his hand. The elevator rises 3 m in 2 s with constant acceleration. It determines the tension of the thread during the ascent. A. 33.9 N B. 999.2N C. 9,921 N D.339 N E. 3.39 N F. 3390 N G. 99.21 N H. 9000 N
- If a net horizontal force of 132 N is applied to a person with mass 60 kg who is resting on the edge of a swimming pool, what horizontal acceleration is produced? 2.2 m/s^2 No answer 22.2 m/s^2 29.20 m/s^2 7920 m/s^2A box of mass m1=5.60 kg rests on a second box of mass m2=13.0 kg. Both are on the floor of an elevator that goes up with constant acceleration of magnitude a=4.90 m/s2, as illustrated in the figure. Assume that the magnitude of gravitational acceleration is g=10.0 m/s2. What is the magnitude of the contact force between the two boxes?A man of weight 80 kg is standing in an elevator which is moving with a constant velocity of 6 m/s in downward direction. The apparant weight of a man will be (take g=10 m/s^2) A. 1280 N B. 0 N C. 320 N D. 800 N E. 640 N
- An elevator cabin has a mass of 380 kg, and the combined mass of the people inside the cabin is 180 kg. The cabin is pulled upward by a cable, in which there is a tension force of 7600 N. What is the acceleration of the elevator? a. 3.76 m/s2 c. 3.76 m/s2 b. 3.76 m/s2 d. 3.76 m/s2A woman stands on a scale while riding in an elevator. When the elevator is at rest, the scale reads 60kg. What will be the reading of the scale in kg when the elevator accelerates. (a) upward at 1.2 m/s^2. (b) downward at 1.2 m/s^2. (c) At what acceleration of the elevator would the person appear to be weightless? Draw the FBD of the problem.An archer pulls a bowstring back a distance of 20 cm with an average force of 85 N. The arrow has a mass of 20.0 g. When he releases the string, what is the velocity of the arrow when it leaves the bow? 41 m/s 1.2 m/s 39 m/s 32 m/s 22 m/s
- A person weighing 0.70 kN rides in an elevator that has an upward acceleration of 1.5 m/s 2. What is the magnitude of the force of the elevator floor on the person?At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 810 m/s^2 and the vertical or y component of its acceleration is 1100 m/s^2. The ball's mass is 0.43 kg. What is the magnitude of the net force acting on the soccer ball at this instant?The SI unit of G, the universal gravitation constant is ______________. A) N m2 kg2 B) N m2 kg-2 C) N m-2 kg-2 D) N m-2 kg2