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Alex_Xolod [135]
4 years ago
6

Explain how velocity is different from speed

Physics
2 answers:
ss7ja [257]4 years ago
8 0
Speed is the distance traveled by an object where as, velocity is distance traveled by an object per unit time in a particular direction. Speed is a scalar quantity where as velocity is a vector quantity.
natali 33 [55]4 years ago
4 0
Speed is a scalar. Velocity is a vector. Velocity has a direction while speed does not
Ex.
Speed: 40mph
Velocity: 40mph east
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I need help, please answer
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The function of the ___________________ system is to keep the human species on this planet.
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4 0
4 years ago
While an object is in projectile motion (with upward being positive) with no air resistance ct is in projectile motion (with upw
andrew11 [14]

Answer:

The horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to -g.

Explanation:

This is because, the projectile has both vertical and horizontal components of velocity. But, its vertical component of velocity changes as the object moves whereas, its horizontal component of velocity remains constant.

Also, the projectile has only vertical component of acceleration and no horizontal component of acceleration since, its horizontal component of velocity remains constant. Thus, no change in the horizontal component of velocity.

The vertical component of acceleration is equal to -g since, the weight is the only vertical force acting on it.

So, <u>the horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to -g.</u>

3 0
3 years ago
Two wheels roll side-by-side without sliding, at the same speed. The radius of wheel 2 is one-half (1/2) the radius of wheel 1.
Lemur [1.5K]

Answer:

w'=(1/2)w

Explanation:

In order to calculate the angular velocity of the second wheel, you use the following formula:

\omega=\frac{v}{r}      (1)

v: speed of the wheel 1 = speed of the wheel 2

r: radius of the wheel 1

For the second wheel you have:

r'=2r

You replace this value of r' in the following equation:

\omega'=\frac{v}{r'}=\frac{v}{2r}=\frac{1}{2}\frac{v}{r}=\frac{1}{2}\omega\\\\\omega'=\frac{1}{2}\omega

The angular velocity of the second wheel is one half of the angular velocity of the first wheel

6 0
3 years ago
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