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
PolarNik [594]
3 years ago
14

you push the ball with a force of 22.8N which induces a -2.3 frictional force what is the net force while you push the ball

Physics
1 answer:
LiRa [457]3 years ago
4 0
Force is a vector quantity in which direction matters. This means that the forces will act in opposing directions so the net force will be
22.8 - 2.3 =
20.5 Newtons
You might be interested in
A 90 kg ice skater moving at 12.0 m/s on the ice encounters a region of roughed up ice with a coefficient of kinetic friction of
balandron [24]

Answer:

The skater covers a distance of <u>15 m</u> before stopping.

Explanation:

Let the distance traveled before stopping be 'd' m.

Given:

Mass of the skater (m) = 90 kg

Initial velocity of the skater (u) = 12.0 m/s

Final velocity of the skater (v) = 0 m/s (Stops finally)

Coefficient of kinetic friction (μ) = 0.490

Acceleration due to gravity (g) = 9.8 m/s²

Now, we know that, from work-energy theorem, the work done by the net force on a body is equal to the change in its kinetic energy.

Here, the net force acting on the skater is only frictional force which acts in the direction opposite to motion.

Frictional force is given as:

f=\mu N

Where, 'N' is the normal force acting on the skater. As there is no vertical motion, N=mg

∴ f=\mu mg=0.490\times 90\times 9.8=432.18\ N

Now, work done by friction is a negative work as friction and displacement are in opposite direction and is given as:

W=-fd=-432.18d

Now, change in kinetic energy is given as:

\Delta K=\frac{1}{2}m(v^2-u^2)\\\\\Delta K=\frac{1}{2}\times 90(0-12^2)\\\\\Delta K=45\times (-144)=-6480\ J

Therefore, from work-energy theorem,

W=\Delta K\\\\-432.18d=6480\\\\d=\frac{6480}{432.18}\\\\d=14.99\approx 15\ m

Hence, the skater covers a distance of 15 m before stopping.

7 0
3 years ago
Help with velocity math pls help asap
pychu [463]
2 is the answer have a nice day <3
5 0
2 years ago
An iron ball weighs 80 N on the surface
Degger [83]

Answer:

2√5N will be the weight.

Explanation:

7 0
3 years ago
You have a spring-loaded air rifle. When it is loaded, the spring is compressed 0.3 m and has a spring constant of 150 N/m. In j
Feliz [49]

The potential energy of the spring is 6.75 J

The elastic potential energy stored in the spring is given by the equation:

E= \frac{1}{2} kx^2

where;

k is the spring constant

x is the compression/stretching of the string

In this problem, we have the spring as follows:

k = 150 N/m is the spring constant

x = 0.3 m is the compression

Substituting in the equation, we get

E=\frac{1}{2} (150) (0.3)^2

E=6.75J

Therefore. the elastic potential energy stored in the spring is 6.75J .

Learn more about potential energy here:

brainly.com/question/10770261

#SPJ4

6 0
1 year ago
Elliptical galaxies are frequently found a) Inside the Milky Way b) In galaxy clusters c) In the Galactic bulge d) In the Local
sergejj [24]

Answer:

The correct option is b) In galaxy clusters

Explanation:

A type of galaxy that appear elliptical in shape and have an almost featureless and smooth image is known as the elliptical galaxy.

An elliptical galaxy is three dimensional and consists of more than one hundred trillion stars which are present in random orbits around the centre.

Elliptical galaxy is generally found in the galaxy clusters.

5 0
3 years ago
Other questions:
  • The owner of a van installs a rear-window lens that has a focal length of -0.340 m. When the owner looks out through the lens at
    11·1 answer
  • A toy gun uses a spring to project a 6.4 g soft rubber sphere horizontally. The spring constant is 9.0 N/m, the barrel of the gu
    8·1 answer
  • If there is an unusually windy month one might anticipate a. Higher tides b.increased wave size c. Unpredictable currents d. Low
    8·1 answer
  • What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?
    9·1 answer
  • Determine the energy required to accelerate an electron between each of the following speeds.(a) 0.500c to 0.898c(b) 0.898c to 0
    11·1 answer
  • The density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as meas
    6·1 answer
  • How magnitude, distance and velocity affects motion?
    13·1 answer
  • Please give a explanation if possible Tysm!
    6·2 answers
  • Three forces act on a flange as shown below. Determine the magnitude of the unknown force F (in lb) such that the net force acti
    11·1 answer
  • A horizontal force F~ is applied to a block of mass m = 1 kg placed on an inclined
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!