All categories

3 years ago

What is the force on a 250 kg elevator that is falling freely at 9.8 m/sec2?

Physics

2 answers:

Anettt [7]3 years ago

7 0

Answer:

$\boxed {\boxed {\sf 2450 \ Newtons }}$

Explanation:

The elevator is falling freely and the only force acting on it is weight. So, calculate the weight.

We can do this by multiplying the mass by the acceleration of gravity.

$W=m*g$

The mass of the elevator is 250 kilograms and the acceleration of gravity is 9.8 meters per second squared.

$m= 250 \ kg \\g= 9.8 \ m/s^2$

Substitute the values into the formula.

$W= 250 \ kg * 9.8 \ m/s^2$

Multiply.

$W=2450 \ kg*m/s^2$

1 kilogram meter per second squared is equal to 1 Newton
So, our answer of 2450 kg*m/s² is equal to 2450 N

$W= 2450 \ N$

The force of weight on the elevator is <u>2450 Newtons</u>

Viefleur [7K]3 years ago

6 0

Answer:

Since it is falling freely, the only force on it is its weight, w.

w = m × g = 250 kg × 9.8 m/s^2 = 2450 Newton/N

You might be interested in

Which process produces rising air when mountains push the air upward?

kicyunya [14]

Answer;

A. orographic lifting

Explanation;

Orographic lifting is a process that takes place when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain.

This can be explained by; When air is blocked by mountains, it cannot go through these mountains, As it ascends or moves up the mountain, the air then cools as it rises and when it cools to its saturation point, the water vapor condenses and cloud forms.

These clouds formed are known as orographic clouds, that develop in response to the lifting forced by the topography the earth.

5 0

3 years ago

Read 2 more answers

What problems can you imagine arising from a nation of mixed nationalities and faiths? Provide real world examples, if you can.

JulsSmile [24]

Many different problem such as racial slurring and racial profiling

4 0

3 years ago

A 5.00-g bullet is fired into a 900-g block of wood suspended as a ballistic pendulum. The combined mass swings up to a height o

Thepotemich [5.8K]

Answer:

The value is $KE_b =0.710 \ J$

Explanation:

From the question we are told that

The mass of the bullet is $m_b = 5.00 \ g = 0.005 \ kg$

The mass of the wood is $m_w = 900 \ g = 0.90\ kg$

The height attained by the combined mass is $h = 8.0 \ cm = 0.08 \ m$

Generally according to the law of energy conservation

$KE _b = PE_c$

Here $KE_b$ is the kinetic energy of the bullet before collision.

and $PE_c$ is the potential energy of the combined mass of bullet and wood at the height h which is mathematically represented as

$PE_m = [m_b + m_w] * g * h$

$KE_b =PE_c = [0.005 + 0.90] * 9.8 *0.08$

=> $KE_b =0.710 \ J$

3 0

3 years ago

The current in a toaster is 20 amps, and its voltage is 200 volts. What is the resistance in the toaster?

alukav5142 [94]

<span>Ohm's law deals with the relation between voltage and current in an ideal conductor. It states that: Potential difference across a conductor is proportional to the current that pass through it. It is expressed as V=IR.

V = IR
200 = 20R
R = 10 ohms</span>

8 0

3 years ago

Read 2 more answers

Radon-220 is a radioactive gas. It escapes from underground rocks and causes a large part of the natural background radiation in

Sergeu [11.5K]

Answer: 134 neutrons are there in the nucleus of Radon-220

Explanation:

Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.

Thus, number of protons = atomic number = 86

Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.

Mass number = Number of protons + Number of neutrons

220 = 86 + Number of neutrons

Number of neutrons = 134

5 0

3 years ago

What is the force on a 250 kg elevator that is falling freely at 9.8 m/sec2?​

What is the force on a 250 kg elevator that is falling freely at 9.8 m/sec2?