Which Phrase describes velocity?

Physics

1 answer:

Sav [38]4 years ago

5 0

Answer:

C. a quantity with magnitude and direction

Explanation:

These are the options for the question

A. a quantity of magnitude only

B. a quantity with direction only

C. a quantity with magnitude and direction

D. a quantity with no units.

Velocity is the distance cover per time, it is the rate at which an object change its position with respect to time.

Velocity is a vector quantity unlike speed which is a scalar quantity, velocity is the speed of an object with a specific direction.

For instance, the distance cover by Mr. A is 10m, at 2 seconds, this show a magnitude and direction, then velocity here is 10/2=5m/s

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A force of 10 N acts on an object with a mass of 10 kg. What is its acceleration? A. 1 m/s2 B. 10 m/s2 C. 2 m/s2 D. 5 m/s2

Akimi4 [234]

The acceleration exerted by the object of mass 10 kg is $\mathbf{1} m / \boldsymbol{s}^{2}$

Answer: Option A

<u>Explanation:</u>

According to Newton’s second law of motion, any external force acting on a body will be directly proportional to the mass of the body as well as acceleration exerted by the body. So, the net external force acting on any object will be equal to the product of mass of the object with acceleration exerted by the object. Thus,

$Force = Mass \times Acceleration$