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sasho [114]
3 years ago
10

A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.79

of her regular weight.
(a) Calculate the magnitude of the acceleration of the elevator.
(b) Find the direction of the acceleration.
Physics
1 answer:
Nataly [62]3 years ago
8 0

Answer:

Part a)

a = 2.06 m/s^2

Part b)

Lift is moving downwards as it is coming with negative sign

Explanation:

As we know that the reading of the scale is equal to the normal force on the woman

So we will have

F_n - mg = ma

here we know that

F_n = 0.79 mg

so we will have

0.79 mg - mg = ma

a = -2.06 m/s^2

Part a)

magnitude of the acceleration of the lift is given as

a = 2.06 m/s^2

Part b)

Lift is moving downwards as it is coming with negative sign

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Explain the relationships between gravity, mass, and distance.
Mazyrski [523]

Answer:

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7 0
3 years ago
Read 2 more answers
Which of the following is most appropriate to follow motion in one dimension?
Lyrx [107]
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5 0
3 years ago
A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseba
Marina CMI [18]

Answer:

4.5m/s

Explanation:

Linear speed (v) = 42.5m/s

Distance(x) = 16.5m

θ= 49.0 rad

radius (r) = 3.67 cm

= 0.0367m

The time taken to travel = t

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t = 0.4 secs

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3 years ago
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