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
pav-90 [236]
3 years ago
12

An 80 kg volleyball player lands from a jump and tries to stop her forward motion. The normal contact force exerted by the floor

on her shoes is 2000 N. The friction force exerted by the floor on her shoes is 600 N acting backward on the player. What is the resultant ground reaction force exerted by the floor on the volleyball player's shoes?
Chemistry
1 answer:
Paladinen [302]3 years ago
3 0

Answer:

The answer to the question is

The resultant ground reaction force exerted by the floor on the volleyball player's shoes = 2088.06 N

Explanation:

To solve the queston we list out the variables thus

Mass of volley ball player = 80 kg

Normal force exerted on her shoes by the floor N =2000 N

friction force, f, exerted on her shoes backwards = 600 N

The resultant ground reactive force, R, is given by

R² = N² + f² = 2000² + 600² =  4000000 + 360000 = 4360000

Therefore R = √(4360000) =  2088.06 N

The direction of the force = atan (2000/600) = 73.3 ° clocwise or 106.699 ° counter clockwise

You might be interested in
PLS HELP ASAP!!!! Describe metallic bonds, include an explanation of their valence electrons. How this related to the properties
Aloiza [94]

If you look it up it will give you plenty of information. This is what I found:

The valence electrons of metals move freely in this way because metals have relatively low electronegativity, or attraction to electrons. The positive metal ions form a lattice-like structure held together by all the metallic bonds. ... When nonmetals bond together, the atoms share valence electrons and do not become ions

https://www.ck12.org/c/physical-science/metallic-bond/lesson/Metallic-Bonding-MS-PS/

5 0
3 years ago
Two positively charged objects (N pole) are separated by a large distance. One of the positively charged objects (N pole) is rep
Eddi Din [679]

Answer:

B

Explanation:

Applying law of electrostatic which states that like charges repel each other and unlike charges attract each other

N and S are unlike charges that turn and make the former repulsive force (due to two like charges N and N)to <em>reduce</em> and attractive force between N and S to <em>increa</em><em>se</em>

6 0
3 years ago
1. Which of the following is a combination reaction?
DaniilM [7]

Answer:

The answer to your question is: letter A

Explanation:

A combination reaction is when there are two reactants that gives only one product.

a. 2SO2 + O2—> 2SO3                          This is a combination reaction,

                                                               2 reactants gives one product.

b. Zn + Cu(NO3)2–>Zn(NO3)2 + Cu     This is not a combination reaction,

                                                                it's a single replacement reaction.

c. 2H2O2–> 2H2O+O2                          This is a decomposition reaction

d. AgNO3 + NaCl → AgCl+NaNO3        THis is a double replacement reaction.

8 0
3 years ago
Are those correct if not tell me which are wrong I need help with number 21 also
adelina 88 [10]
For 23., you have to find a way to measure your heart rate not increase it. search it up on google.

3 0
3 years ago
Read 2 more answers
What kind of compound increases the hydrogen ion concentration in a solution?
Alexxx [7]

An acid.

An acidic compound.

<span>*Acids increase concentrations of H+ ions.</span>

6 0
3 years ago
Other questions:
  • You are on an island and need freshwater to drink. Which process could you
    11·1 answer
  • My question is what is a cell?
    7·1 answer
  • A pot filled with snow is left on a hot stove for a while. What would happen?
    10·1 answer
  • Identifi the atom<br><br>He <br><br>O<br><br>Ne<br><br>Na​
    10·1 answer
  • Silver has a density of 10.5 grams/cm3. What would be the mass of a 5 cm3 piece of sliver
    8·1 answer
  • Calculate the mass of atoms of carbon and 3 molecules of hydrogen​
    7·1 answer
  • What is the majority of the atom composed of *TWO WORD ANSWER* ANSWER ASAP WILL AWARD BRAINLIEST! SCAM ANSWERS WILL BE REPORTED
    12·1 answer
  • PLEASE HELP 50 POINTS!!!!!
    14·1 answer
  • If u answer will answer the brainlest
    6·1 answer
  • A college student drives 40 miles roundtrip each weekday to attend class. His car gets 18 miles per
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!