You are standing on a scale in an elevator initially at rest and the scale reads
71.2
kg. The elevator begins to ascend and accelerates at a rate of
3.57
m/s
2
.
What would the scale read (in kg) when the elevator is moving upwards and
accelerating?
You are standing on a scale in an elevator initially at rest and the scale reads...
V. ELEVATOR REVIEW A man stands on a scale in an elevator. The elevator moves downwards at a velocity of 10 m/s. The elevator accelerates “pwards at a rate of 5 m/s.. The scale under the man reads 180 lbs. A. Is the elevator slowing down or speeding up? B. Given that 1 pound 4.5 Newtons, compute the man's mass? HINT: normal force is not necessarily cqual to weight. You have to usc NII C. The elevator reaches a complete...
You are standing on a bathroom scale and you measure the weight to be 120 lb. You then take the scale onto an elevator and stand on the scale as the elevator accelerates, during which the reading on the scale decreases to 90 lb. Which of the following statements about the elevator could be true? A. The elevator is moving upward at 2 m/s while accelerating downward at 2.45 m/s^2. B. The elevator is moving downward at 4 m/s while...
A 75 kg person is standing on a scale in an elevator. What is the reading of the scale in newtons if the elevator is a) at rest b) moving up at a constant velocity of 2.00 m/s c) accelerating up at 2.00 m/s
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 51 kg person standing on a scale in an elevator that is accelerating upwards at 2m/s2. What is the normal force acting on the person (i.e., what would the scale read)? FN = ?
If a person steps on a scale in an elevator that is accelerating at a rate 1.300 m/s^2 (negative means downward while positive means upwards) and sees a scale reading of 660.400 Newtons what would the scale read if the elevator were not moving?
5. A passenger of mass 85 kg is riding in an elevator while The scale only reads the normal force it exerts on the (Note that 1 b 0.453 kg 4.45 N) a) What standing on a platform scale. does the scale read in pounds (lb) when the elevator is not moving? elevator is moving upward with an acceleration of 3.5 m/s?? c) What does the scale read in pounds (b) when the elevator is same acceleration of 3.5 m/s??...
A 140 lb person rides in elevator while standing on a scale that reads in slugs. For each part below, draw a free body diagram, write the equations for Newton’s second law and solve. a.) If the elevator accelerates upward at 2.53 ft/s^2, what is the reading on the scale? b.) If the elevator accelerates downward at 1.53 ft/s^2, what is the reading on the scale? c.) If the elevator moves upward at a constant velocity of 2.53 ft/s, what...
When a 45-kg person steps on a scale in an elevator, the scale reads a steady 480 N. Which of the following statements must be true? (There could be more than one correct choice.) Check all that apply. The elevator is moving upward at a constant rate. The elevator is accelerating upward at a constant rate. The elevator is accelerating downward at a constant rate. From the given information, we cannot tell if the elevator is moving up or down.
You (mass = 75 kg) are riding in an elevator while standing on a scale. As the elevator begins to rise, you notice that the scale reading briefly increases to 785 N. What is the acceleration of the elevator during this time? Assuming it has three times the acceleration as it slows to rest at the top floor, what does the scale read as it slows?