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Scilla [17]
3 years ago
6

A patricle is accelerated uniformly from rest, so that after 10 seconds it has a speed of 15m/s find its acceleration and the di

stance it has covered?
Physics
1 answer:
grin007 [14]3 years ago
8 0

Answer:

Its acceleration is 1.5 \frac{m}{s^{2} } and the distance it has covered is 150 m.

Explanation:

Acceleration is a quantity that indicates the variation in speed of a moving body as time passes. That is, acceleration relates changes in velocity with the time in which they occur.

The average acceleration is defined as the relationship between the variation or change in the speed of a mobile and the time used in said change:

acceleration=\frac{change in speed}{time}

In this case:

  • change in speed= final speed - initial speed= 15 m/s - 0 m/s= 15 m/s
  • time= 10 s

Replacing:

acceleration=\frac{15 \frac{m}{s} }{10 s}

and solving you get:

<u><em>acceleration= 1.5 </em></u>\frac{m}{s^{2} }<u><em></em></u>

Speed ​​is a quantity that expresses the relationship between the space traveled by an object and the time used for it. This is:

speed=\frac{distance}{time}

So the distance can be calculated as:

distance= speed* time

In this case:

  • speed= 15 m/s
  • time= 10 s

Replacing:

distance= 15 m/s* 10 s

and solving you get:

<u><em>distance= 150 m</em></u>

<u><em>Its acceleration is 1.5 </em></u>\frac{m}{s^{2} }<u><em> and the distance it has covered is 150 m.</em></u>

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corrected question:The heavyweight boxing champion of the world punches a sheet of paper in midair, bringing it from rest up to a speed of 26.5 m/s in 0.044 s . The mass of the paper is 0.003 kg. Part A Find the force of the punch on the paper

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Newtons third law states that in every action there is equal and opposite reaction.

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Black smokers are hot volcanic vents that emit smoke deep in the ocean floor. Many of them teem with exotic creatures, and some
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If the density of water does not vary and the vents range in depth from about 1500 m to 3200 m below the surface, then the gauge pressure at a 2452-m deep vent is 224.268 atm.

Calculation:

Step-1:

It is given that the vents range in depth from about 1500 m to 3200 m below the surface. If we are assuming that the density of water does not vary. Then it is required to calculate the gauge pressure at a 2452-m deep vent.

The gauge pressure at a particular depth of ocean water is calculated as:

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Here \rho is the density of water, P is the required pressure, h is the depth of water, and g is the gravitational acceleration.

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Now we are substituting the values to calculate the pressure at the depth of 2452-m.

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The initial angular speed of the fan will be 55.0 rad/sec. The angular speed of the fan decreases to 84.7 rad/s in 2.96 s.

<h3>What is angular acceleration?</h3>

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Given data;

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Hence the initial angular speed of the fan will be 55.0 rad/sec.

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