Ask question

Ask question

All categories

3 years ago

10

If an object is dropped from a tall building and hits the ground 3.0 s later, what is the velocity of the object when it hits th

e ground? (Remember that the velocity is downward)

1 answer:

dusya [7]3 years ago

6 0

Using the kinematic equation:

Vf=Vi+at then plug the values in.

Vi=0 m/s (Because the ball is dropped)

t=3 s.

a=9.81 m/s=g

Vf=0+3*9.81;

Vf=29.43 m/s

You might be interested in

Rings of dust and icy particles are found around which planets? a. all planets which have moons associated with them b. only Sat

lisov135 [29]

Answer:

d. all four jovian planets.

Explanation:

The Jovian planets are as follows -

URANUS , SATURN , JUPITER, and NEPTUNE .

All these four jovian planets are having the rings , and the rings are made up of infinite number of small pieces of the ice and the rock .

Hence ,

These planets are comparatively small and dense cores surrounded by massive layers of gas .

5 0

3 years ago

shannon dropped his ICP textbook. how fast was it going after 3 seconds? how far did it fall? please guys help mee quickly pleas

Mekhanik [1.2K]

¡Hola!

For this problem, first, lets recabe information:

v = 0 m/s

t = 3 s

g = 9,82 m/s²

v' = ?

d = ?

First, for calculate the final velocity:

v' = v + g * t

v' = 0 m/s + 9,82 m/s² * 3 s

v' = 29,46 m/s $\leftarrow \boxed{\text{Velocity} }$

Now, for calculate how far did it fall:

d = v * t + g * t^2 / 2

Like v = 0 m/s, we can simplificate equation:

d = g * t^2 / 2

d = 9,82 m/s² * (3 s)^2 / 2

d = 9,82 m/s² * 9 s² / 2

d = 88,38 m / 2

d = 44.19 m $\leftarrow \boxed{\text{Distance} }$

¡Buena suerte!

5 0

3 years ago

Provide any THREE types of financiei esitance that can be for

spayn [35]

Answer:

University Need-Based Scholarships.

Federal and State Grants and Scholarships.

Loan Assistance.

Academic Year Student Contribution: AYSC.

Student Employment.

Outside Scholarships.

doing tutors for class 5 below

working as a waitree

and doing small business

8 0

3 years ago

Complete the statement below with the correct term.

dimaraw [331]

Two or three i believe to be the answer

7 0

3 years ago

Read 2 more answers

An EM wave has a wave length of 956 m, What type of electromagnetic waves is this wave

Assoli18 [71]

The electromagnetic spectrum allows finding the result for the question of type of electromagnetic wave has a wavelength of 956 nm

The wave is in the near infrared range.

The electromagnetic wave is an oscillation of electric fields and magnets field that sustain each other, this wave time has the characteristics that it can travel without a material medium, for which they are of extreme importance.

Consequently the spectrum of electromagnetic waves to each part has been given a different name second to its use, for example

Range Name

Ultraviolet light 200 to 400 nm

Visible light 400 to 700 nm

Infrared light (heat ) 700 nm to 1 mm

The latter is subdivided into:

Near infrared 700 nm to 1000 nm (1 μm)

Medium infrared 1 μm to 30 μm

Far infrared 50 μm to 1000 μm

It indicates that the wavelength of the measured radiation is 956 nm, therefore it is in the near infrared range.

Learn more about the electromagnetism spectrum here: brainly.com/question/23727978

6 0

2 years ago