devontadunn3408 devontadunn3408
  • 05-07-2019
  • Physics
contestada

A ball dropped from the roof of a tall building will fall approximately how far in two seconds? (A) 10 m, (B) 20 m, (C) 30 m, (D) 40 m, (E) 50 m.

Respuesta :

CarliReifsteck CarliReifsteck
  • 10-07-2019

Answer:

The ball covered the distance in 2 second is 20 m.

(b) is correct option.

Explanation:

Given that,

Time = 2 sec

Using equation of motion

[tex]s = ut+\dfrac{1}{2}gt^2[/tex]

Where, s = height

u = initial velocity

g = acceleration due to gravity

t = time

Put the value in the equation

[tex]s = 0+\dfrac{1}{2}\times9.8\times2^2[/tex]

[tex]s = 19.6\ approx\ 20\ m[/tex]

Hence, The ball covered the distance in 2 second is 20 m.

Answer Link

Otras preguntas

What are the organelle differences in plant and animal cells
2 why ethiopia described as water towers and roof of north est africa?3 rift valley divided the land of ethiopia into north west and south east highland?
Combine like terms to simplify the expression below. 5 + 2b - 2. = [?]b + +
14th Amendment description
please answer question below
What operations management function is most important to complete prior to inventory​ management? Part 2
Is my answer correct?
Jerry and she This is a multiple choice asking what is correct Her and jerry Jerry and her Correct as is She and jerry
Can someone help me with this? i am very confused.
In an ideal reheat cycle, steam is generated at 6.3 Mpa, 450 deg. C and partially expands to 0.84 Mpa. At this point, the steam is withdrawn and passed through