Table of Contents

## What is the apparent weight of a person when an elevator is accelerating downwards?

If the elevator accelerates downward, a is negative, and the apparent weight is less than the true weight. If the elevator falls freely, , and the apparent weight is zero. The apparent weight is zero because when both the person and the scale fall freely, they cannot push against one another.

**What will happen to a person’s weight when he is in a moving elevator with a constant speed?**

From the above explanation and given condition when person in an elevator is moving at constant speed in such case the net acceleration will be zero. Thus we can say that person’s weight when he is in a moving elevator will not change because the apparent weight of the person will be equal to its true weight.

### What is a 60 kg rider’s apparent weight during the launch?

The 60 kg rider’s apparent weight during the launch is 2.9 × 103N.

**How do you calculate apparent weight?**

The apparent weight of an accelerating object is the vector sum of its real weight and the negative of all the forces that produce the object’s acceleration a = dv/dt. wapparent = wreal – ma.

#### What value does the scale read?

When you stand on a scale, the scale’s reading is a measure of your weight. It is actually recording the Normal force the scale has to exert to support your weight. When you and the scale are stationary with respect to each other, these forces balance out and your weight is equal to the Normal force.

**When a person is standing on a scale the magnitude of what force is displayed by the scale?**

As you are standing there, two forces are being exerted on you, the downward force of gravity and the force of the scale pushing up on you (a normal force as measured by the scale).

## What is the term weightlessness?

weightlessness, condition experienced while in free-fall, in which the effect of gravity is canceled by the inertial (e.g., centrifugal) force resulting from orbital flight. The term zero gravity is often used to describe such a condition.

**What is apparent weight in elevator?**

The sensation of apparent weight comes from the support that you feel from the floor, from a chair, etc. Different sensations of apparent weight can occur on an elevator since it is capable of zero or constant speed (zero acceleration) and can accelerate either upward or downward.

### How does a man of mass 70 kg stand on a scale?

A man of mass 70 kg stands on a weighing scale in a lift which is moving. (a) Upwards with a uniform speed of 10 m s^-1 . (b) Downwards with a uniform acceleration of 5 m s^-2 .

**What is the acceleration of a 50 kg boy in lift?**

A boy of 50 kg is in a lift moving down with an acceleration 9.8 ms^-2. The apparent weight of the body is (g = 9.8 ms^-2)

#### What is a lift in weighing machine?

A block of mass m is placed on a weighing machine and it is also attached to a spring balance. The whole system is placed in a lift as shown in figure. Lift is moving with constant acceleration 1 0 m / s 2 in upward direction.

**What is the apparent weight of a boy of 50 kg?**

A boy of 50 kg is in a lift moving down with an acceleration 9.8 ms^-2 . The apparent weight of the body is (g = 9.8 ms^-2 ) A boy of 50 kg is in a lift moving down with an acceleration 9.8 ms −2. The apparent weight of the body is (g = 9.8 ms −2)