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
Kazeer [188]
3 years ago
8

A 1.0 kg ball falling vertically hits a floor with a velocity of 3.0 m/s and bounces vertically up with a velocity of 2.0 m/s .

If the ball is in contact with the floor for 0.10 s, the average force on the floor by the ball is:
Physics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

50 N

Explanation:

given,

mass of ball = 1 Kg

initial velocity = 3 m/s

final velocity = 2 m/s

time = 0.10 s

impulse = change in momentum

I = m ( v - u)            

I = 1( 2 -(-3))                

I = 5 kg.m/s          

Force is equal to impulse per unit time

average force = \dfrac{I}{t}

                       = \dfrac{5}{0.1}

                       = 50 N

Average force on the floor will be equal to 50 N

You might be interested in
Will give big prizes !!
In-s [12.5K]

Answer:

it may be because of the movement of the atoms. i believe that the heat of the warm water makes it move faster, thus making the object float due to upthrust, or air pressure

7 0
2 years ago
Explain, briefly, what the electrical field inside a microwave oven does to heat food.
yarga [219]

Answer:

Inside the strong metal box, there is a microwave generator called a magnetron. When you start cooking, the magnetron takes electricity from the power outlet and converts it into high-powered, 12cm (4.7 inch) radio waves. Thus the microwaves pass their energy onto the molecules in the food, rapidly heating it up.May 3, 2018

5 0
3 years ago
Choose the correct association for: dense bushes<br><br> savanna<br> rain forest or jungle
Gemiola [76]

Answer:

Climate is determined by averaging the seasonal weather conditions for a region over a period of many ______ years

Choose the correct association for: dense bushes rain forest or jungle

Choose the correct association for: plains savanna

3 0
3 years ago
Which of the following is not used in calculating acceleration?
Leno4ka [110]

Answer:

l think C am not pretty show

4 0
3 years ago
How does the law of conservation of energy apply to machines?
allsm [11]
Energy can be changed from one form to another, but it cannot be created or destroyed. ... This principle is referred to as the first law of thermodynamics or the law of energy conservation. The law applies to all systems both large and small, and, again, it states that energy cannot be created or destroyed.
4 0
4 years ago
Read 2 more answers
Other questions:
  • A beaker has a mass of 125g. What is the mass of this beaker in decigrams
    10·1 answer
  • An object is in motion when it undergoes a continuous change of what?
    8·1 answer
  • How much heat in joules is required to melt an ice cube with a mass of 18.6 g at 0 °C? The Lf for water is 333 J/g.
    11·1 answer
  • What is the charge on a hypothetical ion with 35 protons and 33 electrons?
    11·1 answer
  • A balloon is expanded to the same volume as that of a human head. Do an order-of-magnitude estimate of the volume of this balloo
    11·1 answer
  • 4. What is the amplitude of the waves shown in the diagram below?
    10·1 answer
  • How much time is needed to push a 5,000 N car 50 meters if you are using a machine with a power of 4,500 W?
    7·1 answer
  • Pls answer this is a timed test
    15·1 answer
  • Which two characteristics are important for soil or land that is used for farming ?
    6·2 answers
  • Which of the following is an example of an immiscible liquid?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!