1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shalnov [3]
3 years ago
12

A roofer drops a nail that hits the ground traveling at 26 m/s. How fast was the nail traveling 1 second before it hits the grou

nd?
Physics
1 answer:
RoseWind [281]3 years ago
6 0

vf = vi + at 

vf – vi = at<span>

<span>vi= 0, vf=26  and afor nil = 9.8m/s2</span></span>

26 = 9.8t

t =<span> 26 / 9.8 = 2.65 s
Now we know the total time, so we can calculate the time 1 second before it hit the ground. 

<span>= 2.65 -1 = 1.65s

<span>Now again using the same equation, vf = vi+at, we can find vf
vi = 0, a = 9.8 t=1.65</span></span></span>

vf = 0 + 9.8(1.65) = 16.17 m/s<span>
</span><span>So, the nail is traveling with the speed of 16.17m/s 1 second before it hits the ground.</span>

You might be interested in
Kirchhoff's loop rule for circuit analysis is an expression of which of the following? Conservation of charge Conservation of en
Irina18 [472]

Kirchhoff's circuit laws are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits. They were first described in 1845 by German physicist Gustav Kirchhoff. This generalized the work of Georg Ohm and preceded the work of Maxwell.

6 0
3 years ago
A physics student drops a rock from a 55m cliff. How long does it take to hit the ground?
lara [203]

Answer: 9.9 seconds

Explanation:

that's just how long it takes

6 0
3 years ago
Read 2 more answers
if you jump from a window that is 2 meters up you will most likely break the bones in your legs when you land however on a tramp
Gemiola [76]
<span>The de-acceleration or negative acceleration of stopping is what damages bones. The ground is rigid and therefore the change in momentum when striking the ground will be large. On the trampoline, the elasticity of the material means that the momentum changes more slowly, resulting in smaller accelerations.</span>
5 0
4 years ago
Hi......<br><br><br><br><br><br> ............
Dafna1 [17]

Answer:

Heyy!

Explanation:

..********************

7 0
3 years ago
NEED HELP ASAP, WILL GIVE BRAINLIEST
alexira [117]

a) El Niño is defined as an abnormal weather pattern caused by the warming of the Pacific Ocean near the equator, off the coast of South America. The sun warms the water near the equator, which can make more clouds and, therefore, more rain. It has detrimental effects on biodiversity leading to its large-scale loss by
warmer sea temperatures leading to plankton and fish kills in coastal waters
lower sea levels leading to exposure of underwater coral reefs, causing their loss.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Does light travels faster in a material with a higher index of refraction
    5·2 answers
  • If an experiment involves a large volume of liquid a _______ would most likely be used to hold it.
    9·2 answers
  • A ball is thrown straight up. It passes a 2.00-m-high window 7.50 m off the ground on its path up and takes 1.30 s to go past th
    14·1 answer
  • What's a broad flat volcano created by quiet eruptions
    13·1 answer
  • The acceleration of a baseball pitcher's hand as he delivers a pitch is extreme. For a professional player, this acceleration ph
    10·1 answer
  • Write examples of adaptation in mangrove .? <br>what are the adaptation of rainforest.?​
    8·1 answer
  • Which option is an example of a physical property?
    13·1 answer
  • What do these two changes have in common?
    13·1 answer
  • If a planet has an average distance from the sun (semi-major axis of its orbit) of 4 astronomical units, what is the period of i
    12·1 answer
  • In a game of pool, the cue ball moves at a speed of 2 m/s toward the eight ball. When the cue ball hits the eight ball, the cue
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!