Question

In: Physics

1. A 70kg person stands on a scale in an elevator a) what does the scale...

1. A 70kg person stands on a scale in an elevator

a) what does the scale read in kg when the elevator is at rest

b) what does the scale read in N when the elevator is ascending at a constant speed of 2.7 m/s

c) what does the scale read in kg when the elevator is ascending at a constant speed of 2.7 m/s

d) what does the scale read in N when the elevator is falling at 2.7 m/s

e) what does the scale read in kg when the elevator is falling at 2.7 m/s

f) what does the scale read in N when the elevator is accelerating upward at 2.7 m/s^2

g) what does the scale read in kg when the elevator is accelerating upward at 2.7 m/s^2

h) what does the scale read in kg when the elevator is descending upward at 2.7 m/s^2

I) what does the scale read in N when the elevator is descending upward at 2.7 m/s^2

Solutions

Expert Solution


Related Solutions

A 67.1 kg person on a diet stands on a bathroom scale in an elevator. To...
A 67.1 kg person on a diet stands on a bathroom scale in an elevator. To their great pleasure the scale reads 51.7 kg. What is the acceleration (in m/s^2) of the elevator?
1. Florence, who weighs 560 N, stands on a bathroom scale in an elevator. What will...
1. Florence, who weighs 560 N, stands on a bathroom scale in an elevator. What will she see the scale read when the elevator is accelerating upward at 5 m/s2?(g = 9.8 m/s2)   Newtons 2.You swing a 3.41 kg bucket of water in a vertical circle of radius 0.900 m. At the top of the circle the speed of the bucket is 3.25 m/s. Find the tension in the rope tied to the bucket at the top of the circle
A 79-kg person stands on a bathroom scale and rides in an elevator whose vy-versus-time graph...
A 79-kg person stands on a bathroom scale and rides in an elevator whose vy-versus-time graph is shown in Figure 1 a. What is the reading on the scale at t=1.0s? b. What is the reading on the scale at t=4.0s? c. What is the reading on the scale at t=8.0s?
A 82-kg man stands on a spring scale in an elevator. Starting from rest, the elevator...
A 82-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 0.74 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.4 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 0.74 s of the elevator's ascent?...
A woman stands on a scale in a moving elevator. Her mass is 61.0 kg, and...
A woman stands on a scale in a moving elevator. Her mass is 61.0 kg, and the combined mass of the elevator and scale is an additional 725 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9340 N. What does the scale read (in N) during the acceleration?
A 72 kg man stands on a spring scale in an elevator. Starting from rest, the...
A 72 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 0.73 s. It travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.2 s, and comes to rest. What does the spring scale register in each of the following time intervals? (a) before the elevator starts to move _____ N (b) during the first 0.73 s _____N (c) while...
A physics student who weighs 516.0  N stands on a bathroom scale in an elevator that is...
A physics student who weighs 516.0  N stands on a bathroom scale in an elevator that is supported by an elevator cable; the mass of the elevator, including the student inside, is 868.0  kg . While the student is standing on the scale, the elevator makes an upward trip, followed by a downward trip. A)Find the magnitude of the acceleration of the elevator at the instant of time when the scale reads 449.0  N B)What is the tension in the elevator cable in...
A) An 80- kg man stands in an elevator. What force does he exert on the...
A) An 80- kg man stands in an elevator. What force does he exert on the floor of the elevator under the following conditions? The elevator is stationary. B) The elevator accelerates upward at 2.2 m/s2. C) The elevator rises with constant velocity of 4.5 m/s. D) While going up, the elevator accelerates downward at 1.8 m/s2. The elevator goes down with constant velocity of 7.2 m/s.
A 557-N physics student stands on a bathroom scale in an 859-kg (including the student) elevator...
A 557-N physics student stands on a bathroom scale in an 859-kg (including the student) elevator that is supported by a cable. As the elevator starts moving, the scale reads 496 N Find the direction of the acceleration of the elevator. What is the acceleration if the scale reads 682 N ? If the scale reads zero, should the student worry? Explain. Essay answers are limited to about 500 words (3800 characters maximum, including spaces). 3800 Character(s) remaining What is...
What is the average mass of a person? 70kg What is the average mass of a...
What is the average mass of a person? 70kg What is the average mass of a commercial plane? 300,000kg What is the mass of an electron? 9.109 x 10^-31 kg What is the wavelength of a person moving at 10 m/s? ???? What is the wavelength of a commercial plane moving at 200 m/s? ???? What is the wavelength of a electron moving at 1% of the speed of light? ???? Why don't we see the quantum properties of the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT