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Elena L [17]
3 years ago
15

A soccer player kicks a ball down the field. It rolls to a stop just before the goal. Which statement accurately describes the m

otion of the soccer ball?
A. Inertia moves the ball until it runs out of force
B. The ball loses inertia due to an unbalanced force.
C. A balanced force keeps the ball in motion until it stops.
D. An unbalanced force causes the ball to stop.
Physics
1 answer:
brilliants [131]3 years ago
6 0

B

When the ball was kicked it gained inertia of motion. Inertia is the tendency of an object (in motion or rest) to keep at uniform motion or rest, and in a straight line, unless an external force acts on the object.

Explanation:

The ball kept moving due to inertia in its motion, however, there was an external force acting on the ball which caused it to reduce speed until it came to a standstill. This force is friction with the ground. The friction converted most of the inertia energy into friction and some lost as heat energy until the ball lost most of force to keep moving into the goal.

Learn More:

For more on inertia check out;

brainly.com/question/12791758

brainly.com/question/10379026

#LearnWithBrainly

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A periodic wave with wavelength 2m has a speed of 4m/s. What is the waves frequency?.
Gekata [30.6K]

The wave frequency is 2 Hz.

What is wave frequency ?

The number of waves that pass through a fixed point in a given amount of time is referred to as the wave frequency. The hertz is the SI unit for wave frequency (Hz).

f = v / w

where,

f = frequency\\v = speed \\w = wavelength

Given,

v = 4 m/s, w = 2 m

f = 4/2 \\f = 2 Hz\\

The waves frequency is 2 Hz.

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5 0
1 year ago
A _____________ is a system that uses vertical posts which are separated to support a horizontal beam. A. Truss c. Post-and-lint
IgorC [24]

A Post-and-lintel is a system that uses vertical posts which are separated to

support a horizontal beam.

A Post-and-lintel system is commonly used in architecture and involves the

system where horizontal structures are held by vertical ones with the

presence of spaces between them.

In this scenario, we were told the system uses vertical posts which are

separated to support a horizontal beam which makes Post-and-lintel the

most appropriate choice.

Read more on brainly.com/question/8777125

3 0
2 years ago
A small lead ball, attached to a 1.70-m rope, is being whirled in a circle that lies in the vertical plane. The ball is whirled
Otrada [13]

Answer:

H = 54.37

Explanation:

given,

lead ball attached at = 1.70 m

rate of revolution = 3 revolution/sec

height above the ground = 2 m

velocity = \dfrac{distance}{time}

circumference of the circle = 2 π r

                                             = 2 x π x 1.7

                                             = 10.68 m

velocity = \dfrac{3 \times 10.68}{1}

v = 32.04 m/s

using conservation of energy

\dfrac{1}{2}mv^2 + mgh = mgH

\dfrac{1}{2}v^2 + gh = gH

\dfrac{1}{2}32.04^2 + 9.8\times 2 = 9.8\times H

532.88 = 9.8\times H

H = 54.37

the maximum height reached by the ball is equal to H = 54.37

4 0
3 years ago
If a person walks 1km north , 5 km West , 3km south and 7km east, find the resultant displacement vector
raketka [301]

Y = +1-3 = -2  

X = -5+7 = +2  

D = √2^2-2^2 = 2√1+1 = 2√2 km

3 0
3 years ago
If a bowl of fruit is sitting on a table in a state of rest, what is the net force acting on it?
Setler79 [48]
A balanced force is upon it because balanced means both sides are equal so they cancel each other out, while unbalanced means one side is weaker/stronger than the other and in this case its in a state of rest so the net force would be equal/balanced.
8 0
4 years ago
Read 2 more answers
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