A person stands on a scale inside an elevator at rest and the scale reads 900...
A person stands on a scale inside an elevator at rest and the scale reads 900 N. If the elevator moves upward at a constant speed of 3 m/s, what does the scale read then?
What if the elevator accelerated upward at a constant rate of 3 m/s2, what does the scale read then?
| 900 N, 2700 N |
| 900 N, 3600 N |
| 900 N, 624.5 N |
| 1175.5 N, 1175.5 N |
| 900 N, 1175.5 N |
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Question 282 pts
On a highway curve with a radius of 46 meters, the maximum force of static friction that can act on a 1,200 kg car going around the curve is 7,500 Newtons. What speed limit should be posted for the curve so that cars can negotiate it safely?
[Express the answer in m/s and mph]
| 17.322 m/s, 38.975 mph |
| 16.956 m/s, 38.151 mph |
| 16.956 m/s, 37.033 mph |
| 16.459 m/s, 37.033 mph |
| 16.956 m/s, 38.975 mph |
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A person stands on a scale inside an elevator at rest and the
scale reads 900...
aestion 2 When a person stands on a scale in an elevator at rest, the scale...
aestion 2 When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read: ot yet answered arked out of 2.00 - Flag question Select one: О'a None b. 1600 newtons O c. 800, newtons O d. 400 newtons e. 1125 newtons hand with an upward
A 73.0-kg person stands on a scale in an elevator. What does the scale read (in...
A 73.0-kg person stands on a scale in an elevator. What does the scale read (in N) when the elevator is at rest? What does the scale read (in N) when the elevator is climbing at a constant speed of 3.0 m/s? What does the scale read (in N) when the elevator is descending at 3.0 m/s? What does the scale read (in N) when the elevator is accelerating upward at 2.4 m/s2 ? What does the scale read (in...
When a person stands on a scale in an elevator at rest, the scale reads 800...
When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read:
a person stands on a scale inside an elevator at rest. The scale read 800 N....
a person stands on a scale inside an elevator at rest. The scale read 800 N. a) The elevator accelerates upward momentarily at the rate of 2 m/s2 . What does the scale read then? I am confused here. please give me a hand preferably with a free body diagram. I am bad at physics
Question 7 Not yet answered When a person stands on a scale in an elevator at...
Question 7 Not yet answered When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read: Marked out of 200 Select one P Flag question O a 800 newtons Ob 1600 newtons C None d. 1125 newtons e. 400 newtons
Question 3 Not yet answered When a person stands on a scale in an elevator at...
Question 3 Not yet answered When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read Marked out of 200 P Flag question Select one: O a 1600 newtons Ob 800 newtons O C. None O d. 400 newtons O e 1125 newtons
A 74.0 −kg person stands on a scale in an elevator. What does the scale read...
A 74.0 −kg person stands on a scale in an elevator. What does the scale read (in kg) when the elevator is accelerating upward at 3.2m/s^2? What does the scale read (in N) when the elevator is accelerating downward at 3.2m/s^2? What does the scale read (in kg) when the elevator is accelerating downward at 3.2m/s^2?
A 72 kg man stands on a bathroom scale in an elevator. Starting from rest at...
A 72 kg man stands on a bathroom scale in an elevator. Starting from rest at the top floor, the elevator descends, attaining its maximum speed of 1.20 m/s in 0.80 s. It travels with this constant speed for the next 5.00 s. The elevator then slows down for 1.50 s and comes to rest at ground level. a)What is the acceleration of the man during the first 0.80 s? Answer in units of m/s2 and use the upward direction...
A 68-kg man stands on a spring scale in an elevator. Starting from rest, the elevator...
A 68-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.77 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.8 s, and then comes to rest. (a) What does the spring scale register before the elevator starts to move? N (b) What does the spring scale register during the first 0.77 s of the elevator's ascent?...
3,4? 3. A 100-kg person stwnds on a scale fastened to the floor of an elevator....
3,4?
3. A 100-kg person stwnds on a scale fastened to the floor of an elevator. The scale reads in newtons. What does the scale read when (a) the elevator is moving with upward acceleration a (b) the elevator is moving with downward acceieration a' and (c) the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s?? 4. A beer stein of mass 0.45 kg slides horizontally along the bar with...
aestion 2 When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read: ot yet answered arked out of 2.00 - Flag question Select one: О'a None b. 1600 newtons O c. 800, newtons O d. 400 newtons e. 1125 newtons hand with an upward
Question 7 Not yet answered When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read: Marked out of 200 Select one P Flag question O a 800 newtons Ob 1600 newtons C None d. 1125 newtons e. 400 newtons
Question 3 Not yet answered When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, then the scale will read Marked out of 200 P Flag question Select one: O a 1600 newtons Ob 800 newtons O C. None O d. 400 newtons O e 1125 newtons
3,4?
3. A 100-kg person stwnds on a scale fastened to the floor of an elevator. The scale reads in newtons. What does the scale read when (a) the elevator is moving with upward acceleration a (b) the elevator is moving with downward acceieration a' and (c) the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s?? 4. A beer stein of mass 0.45 kg slides horizontally along the bar with...
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