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3 years ago

2. Using examples to describe each term, differentiate

Physics

1 answer:

melisa1 [442]3 years ago

7 0

Answer: find the answer in the explanation

Explanation:

Average velocity is the average value of magnitude of initial velocity and final velocity.

If U = initial velocity and V = final velocity, then average velocity can be expressed as

Average velocity = ( U + V )/2

A vehicle who takes 60 minutes to cover 30 miles north and then 30 miles south and end up at the same place, has an average speed of 60 miles divided by 60 minutes, or 1 mile per minute.

Instantaneous velocity is the distance covered in a specific direction per time taken. Instantaneous velocity can be expressed as

Velocity = displacement/ time.

Uniform velocity occurs when we have a constant velocity. That is, when velocity does not change. When a vehicle travels in equal distances in equal intervals of time.

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Which example is NOT a part of the electromagnetic spectrum?

soldier1979 [14.2K]

Electricity is not apart of it

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3 years ago

The mass of the motorbike and rider is 286 kg. Calculate the acceleration of the motorbike at this moment in time.

Aleks04 [339]

Answer:

$a=4.03\ m/s^2$

Explanation:

Given that,

The mass of the motorbike and rider is 286 kg.

We need to find the acceleration of the motorbike at this moment in time.

Net force acting on the bike is given by :

F = 2000 N - 845 N = 1155 N

Let a be the acceleration of the motorbike. So,

$a=\dfrac{F}{m}\\\\a=\dfrac{1155}{286}\\\\a=4.03\ m/s^2$

So, the acceleration of the motorbike is $4.03\ m/s^2$ .

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3 years ago

Difference between uniform motion and non uniform motion <br>

photoshop1234 [79]

Answer:

Uniform motion is a type of motion that is characterized as the motion of an object wherein the object moves in a straight line and its velocity remains unchanged along that line, regardless of the duration of time, as it occupies equal distances at equal time interval and Non-uniform motion is described as the motion of an object wherein the object moves at different speeds and does not cover the same distance at equal time intervals, regardless of the duration of the time interval.

5 0

3 years ago

Read 2 more answers

Does an object need a force to start moving

nadya68 [22]

Newton's first law actually states that a force isn't needed to keep an object moving, so no.

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4 years ago

Kim walks her dog 5 blocks up the street and then 3 blocks back down

Neporo4naja [7]

The distance covered is 8 blocks, the displacement is 2 blocks up

Explanation:

Distance is a scalar quantity measuring the total length of the path covered by an object, regardless of the direction of its motion
Displacement, on the other hand, is a vector quantity equal to the difference between the final position of motion and the initial position of motion. Its magnitude is equal to the shortest distance in a straight line between the initial and final point of motion.

In this problem, Kim walks the dog 5 blocks up and 3 blocks down:

- The distance is just the total length of the path taken, therefore:

$distance = 5 + 3 = 8 blocks$

- The displacement is a vector connecting the final point to the initial point. Since Kim walks 5 blocks up and 3 blocks down, her final position is

x = +5 +(-3) = +2

Which means, 2 blocks up. Therefore, the displacement is 2 blocks up.

Learn more about distance and displacement:

brainly.com/question/3969582

#LearnwithBrainly

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3 years ago