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
Vikentia [17]
3 years ago
12

A pile driver lifts a 450 kg weight and then lets it fall onto the end of a steel pipe that needs to be driven into the ground.

A fall of 1.5 m drives the pipe in 45 cm.
What is the average force exerted on the pipe?
Physics
2 answers:
nikitadnepr [17]3 years ago
6 0
The gravitational potential energy becomes work driving the pipe 

<span>m g h = f d </span>

<span>450 * g * 1.5 = f * .45</span>
Vika [28.1K]3 years ago
6 0

Answer:

F = 14700N

Explanation:

Hello! Let's solve this!

We have the following data:

vi = 0m / s

dy = 1.5m

m = 450kg

dx = 0.45m

First we need to know the speed of the impeller.

We can use the following formula

vf^{2}=vi^{2}+2*g*dy

We get the vf

vf=\sqrt{2*g*dy}

vf=\sqrt{2*9.8m/s^{2}*1.5m }

vf = 4.42m / s

Then the kinetic energy is equal to the work done.

KE=\frac{1}{2}*v^{2} *m

KE=1/2*5.42m/s^{2}*450kg

We cleared KE

KE = W = 6615J

From the working formula we will clear the force exerted.

W = F * dx

F = W / dx = 6615J / 0.45m

F = 14700N

You might be interested in
An air mass that forms over Arizona and New Mexico will be?
vlada-n [284]
Continental Tropical Air Mass. Your welcome matey
5 0
3 years ago
NEED HELP ASAP!!!!!!!!!!!!!
love history [14]

Answer: Decreased risk of heart attack

Explanation:

thats the answer because it actually

increase rish of heart attack

Hope this helps :)

5 0
3 years ago
Read 2 more answers
A proton is placed in an electric field of intensity 700 n/
kakasveta [241]
F=ma
F=QE = 1.602e-19C*700N/C = 1.1214e-16N
1.1214e-16N = ma = 1.6726e-27kg * a
a = 6.702e10 m/s²  along the direction of the field line

8 0
3 years ago
Translation is the process by which the DNA code is reads to create the RNA strand
Leya [2.2K]
True............................................
5 0
3 years ago
Describe two ways unbalanced forces help you in your day to<br> day life.
Alexxandr [17]

Answer:

  1. we need unbalance force to lift objects
  2. we need unbalance force to drag objects
6 0
3 years ago
Other questions:
  • How many different parts parts of the solar system can you see?
    8·1 answer
  • Finding the work done in pulling a stranded climber to safety. In an unfortunate accident, a rock climber finds herself stuck 17
    9·1 answer
  • *this is a multiple select question*
    15·1 answer
  • A 2 kg ball travelling West at 6 m/s collides with a 3 kg ball travelling South at 4 m/s stick together and move off with a comm
    15·1 answer
  • 5. A car has a kinetic energy of 4.32x105 J when traveling at a speed of 23 m/s. What is
    14·1 answer
  • Which of the following defines the Permian Triassic​
    9·1 answer
  • Based on the bond energies given for each of the following which is the most stable? O=O 498 kJ/mol N≡N 946 kJ/mol C=C 614 kJ/mo
    10·1 answer
  • 7) Which statement below best describes the motion of the cart under the conditions shown in the image below?
    12·1 answer
  • The number of perpandicular components of a force is<br>​
    7·1 answer
  • Can anybody help me?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!