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 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) 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.
1) A paragliding person who is 70kg is attached to a motorboat and to a parachute...
1) A paragliding person who is 70kg is attached to a motorboat and to a parachute by ropes. The motorboat's rope is pulling the person with a tension force and it is at an angle of 45 degrees. The parachute rope is at an angle of 25 degrees with respect to the vertical. If the person is sailing along at constant speed, then what is the tension in the parachute rope (the rope above the person's head)? 2) In deep...
A: Assume that the mass of a person is 70kG and 8% of the body mass...
A: Assume that the mass of a person is 70kG and 8% of the body mass is blood. If the density of blood is 1.055g/mL, what is the blood volume? B: Assume that the hematocrit (the ratio of the volume of red blood cells to the total volume of blood) ratio is 0.45, what is the plasma volume of this person? C: Assume that the average life span of the red blood cell is 120 days. What volume of red...
An elevator is descending with uniform acceleration.To measure the acceleration, a person in the elevator drops...
An elevator is descending with uniform acceleration.To measure the acceleration, a person in the elevator drops a coin at the moment the elevator starts.The coin is 6ft above the floor of the elevator at the time it is dropped.The person observes that the coin strikes the floor in 1 second. Calculate from these data the acceleration of the elevator
A monkey sits on a bathroom scale which is on the floor of an elevator for...
  A monkey sits on a bathroom scale which is on the floor of an elevator for a very tall building. The monkey has a mass of 42.0 kg. What is the reading on the scale if there is not motion and no acceleration? When the elevator starts moving the scale reads 480 N. Describe the acceleration for this case. At another time the scale reads 360 N. Describe the acceleration for this second case. Calculate the acceleration in each...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT