A person stands on a scale in an elevator. What is the elevator's acceleration when the...

Question

Question

A person stands on a scale in an elevator. What is the elevator's acceleration when the scale reads 3/4 of her weight?

science physics

Answer 1

Answer #1

N - Mg = - Ma Hence N= Mg ( 1- a/ g )

here in this case N= 3/4 Mg

(3/4) Mg = Mg ( 1- a/g )

a= g/ 4 = 2.45 m/s² downwards

Answer 2

Similar Homework Help Questions

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 woman stands on a bathroom scale in a motionless elevator. When the elevator begins to...

A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.77 of her regular weight. Calculate the magnitude of the acceleration of the elevator.
A man stands on a scale in an elevator that has an upward acceleration a. The...

A man stands on a scale in an elevator that has an upward acceleration a. The scale reads 928 N. When he picks up a 18.2 kg box, the scale reads 1223 N. Find: 1. The mass of the man. mman = 2. The weight of the man. Wman = 3. The acceleration a. a =

Question 8 10 pts A person stands on a bathroom scale in a motionless elevator. When...

Question 8 10 pts A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.72 of his/her regular weight. Calculate the acceleration of the elevator and find the direction of acceleration. (Choose upward as the positive direction and express the direction of the acceleration using the sign of the result, which must be in units of mis and include 2 digit after the decimal point. Maximum of 5%...
A 96.5-kg person stands on a scale in an elevator. What is the apparent weight when...

A 96.5-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.57 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.79 m/s2?
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

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 86.8-kg person stands on a scale in an elevator. What is the apparent weight when...

A 86.8-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.72 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.67 m/s2? (a) Number Units (b) Number Units (c) Number Units
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

A man stands on a scale in an elevator that has an upward acceleration a. The...

A man stands on a scale in an elevator that has an upward acceleration a. The scale reads 956 N. When he picks up a 22.7 kg box, the scale reads 1230 N. The acceleration a. a =????