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
Temka [501]
3 years ago
8

Samuel is preventing a boulder from rolling down a hill with a slope of 35°. If the boulder

Mathematics
1 answer:
Rashid [163]3 years ago
3 0

Answer:

1,809.98 lb*m/s^2

Step-by-step explanation:

First, we want to know how much weight of the boulder is projected along the path in which the boulder can move.

The weight of the boulder is:

W = 322lb*9.8 m/s^2 = (3,155.6 lb*m/s^2)

This weight has a direction that is vertical, pointing downwards.

Now, we know that the angle of the hill is 35°

The angle that makes the direction of the weight and this angle, is:

(90° - 35°)

(A rough sketch of this situation can be seen in the image below)

Then we need to project the weight over this direction, and that will be given by:

P = W*cos(90° - 35°) = (3,155.6 lb*m/s^2)*cos(55°) = 1,809.98 lb*m/s^2

This is the force that Samuel needs to exert on the boulder if he wants the boulder to not roll down.

You might be interested in
D=-0.5t + 7<br>I REALLY NEED HELP ASAP I WILL MARK BRAINLIEST TYTY​
serg [7]

Answer:

7.5t

Step-by-step explanation:

6 0
2 years ago
Please help anybody it would help alot
antoniya [11.8K]
X=20

180-77=103

so then simplify (6x-17)=103
6x=120
x=20
5 0
3 years ago
Help me please.<br><br> Rounding questions.
ehidna [41]

Step-by-step explanation:

a) 6400

b) 4800

c) 32000

hope this answer helps you dear!

3 0
2 years ago
HELP ME PLZ PLZ PLZ!
Triss [41]

Answer:

I don't know the value of either, could you add more information?

Step-by-step explanation:

I'd be glad to help.

6 0
3 years ago
A teacher has 360 pieces of candy. if there are 44 students,6 whom are boys, if discussed evenly, how many pieces of candy will
suter [353]
I belive the answer is 8.
6 0
3 years ago
Other questions:
  • Please help quickly, I have to turn this in tomorrow for school
    12·1 answer
  • Angle D and Angle E are vertical angles. If the measure
    12·2 answers
  • Andrew plays on a basketball team. In two games he scored 2/5 of the total number of points his team scored. His team scored 55
    13·2 answers
  • Evaluate this expression for the given value of the variable 4 (d+7);d=-2
    8·2 answers
  • Help ASAP! will give brainliest!
    10·1 answer
  • 200 cm and 200 dm which one is bigger
    12·1 answer
  • The perimeter of a rectangle is 40 in. Twice the length of the rectangle is 20 minus twice the width. What are the length and wi
    14·1 answer
  • Find the Surface Area of the triangular prism *<br><br> PLEASE HELP! ILL GIVE YOU BRAINIEST!!
    5·1 answer
  • I need help with number 10
    12·1 answer
  • The total cost of 8 sharpeners and 3 sketchbooks is $26.05. If the cost of a sharpener is $a, and a sketchbook is $1.90 more exp
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!