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MA_775_DIABLO [31]
4 years ago
6

Explain why sports men use shoes with spikes ???

Physics
2 answers:
Sidana [21]4 years ago
7 0

Answer:

Grip.

Explanation:

In sports where a lot of running or stability on ground is required (baseball, American football, soccer, etc.) having spikes that can penetrate the ground increases running efficiency and speed.

Gripping is basically holding tightly (firmly) on to something, and in this case, the spikes on the shoes sole grip the ground so that you can push towards the ground stronger, and propel yourself further.

Hope it helped,

BiologiaMagister

Sophie [7]4 years ago
4 0

hola!!!

Sportsmen use shoes witli spikes because these shoes give them a better grip while running. This is because the force of friction between the shoes and the ground increases with the help of spikes

hope it helps u

follow me

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Why do moving back and forth, and moving in a circle look the same on a graph of position versus time?
pentagon [3]

Answer:

  one dimension of motion on a circle is "back and forth"

Explanation:

Whether the position graphs look the same or not is a function of the acceleration (and velocity), and how position is measured.

For a circle centered at the origin, uniform motion around the circle will be equivalent to sinusoidal motion in the x- or y-directions. So, that motion is equivalent to sinusoidal motion "back and forth", however it may be generated.

The "back and forth" motions of a piston in a cylinder (connected to a crankshaft), and of a pendulum, are almost sinusoidal, but not quite. Their position graphs will differ slightly from the graph of position of an object moving around a circle.

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On the other hand, if the circular motion is plotted as the length of the radius versus time, it will be a constant -- not "back and forth" at all.

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In short, plots of similar motion will look similar.

3 0
3 years ago
How far will a freely falling object fall from rest in five seconds? six seconds?
Vanyuwa [196]
Distance = 1/2*gravity*velocity^2 
<span>So plugging: 1/2 * 9.8 * 25 = 122.5units
 and is six second
</span><span>Distance = 1/2*gravity*velocity^2 
</span><span>So plugging: 1/2 * 9.8 * 36= 176.4 units</span>
4 0
3 years ago
A proton moves from left to right across the screen at speed v0. Then a uniform magnetic field of strength 0.80 T is directed in
Anton [14]

Answer: The force is  directed upward

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F= qv×B

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8 0
4 years ago
A ball which is dropped from the top of a building strikes the ground with a speed of 30m/s. Assume air resistance can be ignore
Vika [28.1K]

Answer:

               h= 45.87 m.

Explanation:

Data given:

Vf= 30m/s ,     and we know that g = 9.8 m/s²    

The ball has an initial velocity of zero      Vi = 0 m/s²    

To Find:

Height of the building = ?

Solution:

       According to 3rd law of the motion;

                                      2aS= Vf² - Vi²                      ( S= h , a=g)

                                     2*9.81*h = (30)² - (0)²

                                      h= 45.87 m.

3 0
3 years ago
calculate the period of a wave whose frequency is 5 Hertz and whose wavelength is one centimeter give your answer in a decimal f
olga2289 [7]
The period of the wave is the reciprocal of its frequency.

       1 / (5 per second)  =  0.2 second .

The wavelength is irrelevant to the period.  But since you
gave it to us, we can also calculate the speed of the wave.

Wave speed = (frequency) x (wavelength)

                   = (5 per second) x (1cm)  =  5 cm per second
4 0
4 years ago
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