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
AysviL [449]
3 years ago
9

A miners' cage of mass 420 kg contains 3 miners of total mass 280 kg. The cage

Mathematics
1 answer:
svp [43]3 years ago
8 0

Answer:

5817 Newtons.

Step-by-step explanation:

Total mass of the cage + the miners = 700 Kg which is a downward force of  700g N.

The net downward force = 700g - T where T is the tension (force) in the cable. The g = acceleration due to gravity = 9.81 m s-2.

We  calculate the  acceleration of the cage by using an equation of motion:

Distance = ut + 1/2 a t^2     where u = initial velocity , t = time and a = acceleration:

75 = 0(t) + 1/2 a (10^2)

50a =  75

a = 1.5 m s-2.

So using Newtons second law of motion

Force = mass * acceleration:

700*9.81 - T = 700 * 1.5

T = 700 * 9.81 - 700*1.5

= 5817 N.

You might be interested in
6th grade math plz help
ella [17]

Answer:

The question needs more information but you can see that all the numbers in the 1st column are multiplied by 6 to equal the number in column 2

Step-by-step explanation:

3 x6 =18

6 x 6= 36

9 x6= 54

12 x6 =72

6 0
3 years ago
What is the increase in price?
xeze [42]

Answer:

the pic is not clear maybe you type it out

6 0
3 years ago
DESPERATE! PLEASE HELP!! BRAINLIEST! Show how you got answer please!
frosja888 [35]
43 units
count all the square boxes. count the boxes covering more than half and leave the boxes covering less than half. I hope it's correct.
5 0
3 years ago
A rectangular garden is 80 feet long and 50 feet wide. It has a walkway along its diagonal. How long is the walkway? 62.4 feet 9
viktelen [127]
94 feet. 50^2 + 80^2 = x^2
8 0
3 years ago
Just write some random stuff and get points
Tanya [424]
I like pizza pizza is good for my health
8 0
3 years ago
Other questions:
  • The circumference of a circle measures 11.27π ft.What is the measure of the diameter of this Circle?
    15·1 answer
  • Name the property used to make the conclusion. If 13=x, then x=13.
    8·1 answer
  • -3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y^2<br><br> x = 2 , y = -1
    5·1 answer
  • X² + 6x +8=0<br> In factoring algorithm
    10·2 answers
  • Write the number name for 44,080,700 in expanded form
    13·1 answer
  • he trans pacific express projects 11,000 mile in telecommunications cable under the pacific ocean connecting the US eastern asia
    11·2 answers
  • What is (-3, -14) and (0, -9) written in slope intercept form? Thank you!
    13·2 answers
  • 100 points<br> answer the questions
    13·2 answers
  • The sum of two numbers is 40 and the difference is 16. What are the numbers?
    5·1 answer
  • WILL GIVE BRAINLIEST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!