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If a 63.4 kg person stood on the floor in an elevator accelerating upward with 0.41g,...
A 100kg person rides in an elevator accelerating 2m/s2 upward. 1.) what is the magnitude (in...
A 100kg person rides in an elevator accelerating 2m/s2 upward. 1.) what is the magnitude (in N) of the gravitational force on the person? 2.) what is the magnitude of the normal force of the floor on the person’s feet? 3.) what value would the acceleration have to be for the magnitude of the normal force exerted by the floor on the person’s feet to be equal to the magnitude of their weight?
A 62-kg woman in an elevator is accelerating downward at a rate of 1.6 m/s2. What...
A 62-kg woman in an elevator is accelerating downward at a rate of 1.6 m/s2. What is the magnitude of the force exerted by the elevator floor on the woman's feet?
E. Suppose you are standing on the scale in the elevator and the elevator is accelerating...
E. Suppose you are standing on the scale in the elevator and the
elevator is accelerating downward with
an acceleration smaller than 9.8 m/s2
i. Draw free-body diagrams of yourself, the scale, and the floor
of the elevator where it interacts
with the scale.
ii. How must the magnitude of the force exerted by the scale on
you compare with your own
weight?
iii. How must the reading on the scale compare with the reading
you make when the elevator...
A 5.0 kg dog sits on the floor of an elevator that is accelerating downward at...
A 5.0 kg dog sits on the floor of an elevator that is accelerating downward at 1.20 m/s^2. What is the magnitude of the normal force of the elevator floor on the dog? An astronaut's weight on earth is 80 N. What is his weight on Mars where g = 3.76 m/s^2? (a) How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m? (b) How much power does the motor supply...
A 2.40-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.40-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.480. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 1.20 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 1.20 m/s2.
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.460. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.30 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.30 m/s2. N
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.440. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.00 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.00 m/s2. N
A 4.67-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 4.67-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.361. Determine the kinetic frictional force that acts on the box when the elevator is (a) stationary, (b) accelerating upward with an acceleration whose magnitude is 2.10 m/s2, and (c) accelerating downward with an acceleration whose magnitude is 2.10 m/s2.
Draw a free-body diagram for a 70-kg person standing in an elevator carrying a 15-kg backpack...
Draw a free-body diagram for a 70-kg person standing in an elevator carrying a 15-kg backpack (do not consider the backpack a part of the person!). (a) if the elevator is not moving, and (b) if the elevator is accelerating downwards at 2m/s2. In each case, what is the magnitude of the normal force exerted on the person by the floor?
A block of mass 47 kg is situated on the floor of an elevator that is...
A block of mass 47 kg is situated on the floor of an elevator that is accelerating upward at 4.95 m/s2 . What magnitude force does the elevator floor exert on the block?
E. Suppose you are standing on the scale in the elevator and the
elevator is accelerating downward with
an acceleration smaller than 9.8 m/s2
i. Draw free-body diagrams of yourself, the scale, and the floor
of the elevator where it interacts
with the scale.
ii. How must the magnitude of the force exerted by the scale on
you compare with your own
weight?
iii. How must the reading on the scale compare with the reading
you make when the elevator...
A 5.0 kg dog sits on the floor of an elevator that is accelerating downward at 1.20 m/s^2. What is the magnitude of the normal force of the elevator floor on the dog? An astronaut's weight on earth is 80 N. What is his weight on Mars where g = 3.76 m/s^2? (a) How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m? (b) How much power does the motor supply...
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