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d1i1m1o1n [39]
3 years ago
14

A car is moving 18 m/s to the east. if it takes the car 5 seconds to reach a velocity of 19 m/s to the east, what is its acceler

ation?
A. 1 m/s2 east
B. 0.2 m/s2 west
C. 0.2 m/s2 east
D. 5 m/s2 east
Physics
2 answers:
almond37 [142]3 years ago
5 0
<span>C. 0.2 m/s2 east

Hope it helps!
</span>
kakasveta [241]3 years ago
4 0
<h2>Option C is the correct answer.</h2>

Explanation:

We have equation of motion v = u + at

Initial velocity, u = 18 m/s to east

Final velocity, v = 19 m/s to east

Acceleration, a = ?

Time, t = 5 s

Substituting

             v = u + at

             19 = 18 + a x 5

              1 = 5a

               a = 0.2 m/s²

Since the velocity direction is towards east, direction of acceleration is also towards east.

So acceleration is 0.2 m/s² towards east.

Option C is the correct answer.

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3 years ago
Explain the phenomenon of polarization when a dielectric slab is subjected to an electric<br> field?
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<h3>What is an Electric field?</h3>
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The phenomenon of polarization when a dielectric slab is subjected to an electric field:

A dielectric, insulating material, or an extremely bad conductor of electrical current. Due to the absence of loosely bound, or free, electrons that could wander through the material, unlike metals, dielectrics practically do not conduct current when exposed to an electric field. Electric polarization takes place instead.

To learn more about the electric field, refer to:

brainly.com/question/14372859

#SPJ9

8 0
2 years ago
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nikdorinn [45]
The best answer is A) <span>keep moving at a constant velocity until some forces act on them

As the man you're probably tired of hearing about said:

"Every object persists in its state of rest or in uniform motion in a straight line unless a new force acts upon it" 
This is Isaac Newton's 1st law of motion, or the law of inertia. 

Put more simply, objects in motion tend to stay in motion, and tend the maintain the same velocity (direction and speed) and objects at rest tend to stay at rest. </span>
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3 years ago
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