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gavmur [86]
3 years ago
7

What is fundamental and derived unit? what's the difference between them ?

Physics
2 answers:
bekas [8.4K]3 years ago
7 0
THAT IS THE ANSWER B. 20023


UNO [17]3 years ago
6 0
A base unit or fundamental unit is a unit adopted for measurement of a base quantity.

and derived unit are those that are derived by the use of fundamental unit !

main difference is ......
There are seven fundamental quantities and they cannot be further broken down but the derived units can be many and they can be broken down to fundamental ones !

examples....meter,gram,candela,ampere, etc are fundamental......and derived are area,volume,speed etc
You might be interested in
What is kinetic energy of a 7.26kg bowling ball that is rolling at a speed of 2m/s?
sergey [27]

Kinetic energy is the energy possessed by an object when that object is moving in space. The higher the mass of an object or higher the speed of an object the higher the kinetic energy will be.

So to calculate the Kinetic Energy we can use the following formula

K.E=(1/2)*m*v^2

Inserting the values in formula gives:

K.E=1/2*7.26*2^2

14.52J

This is the final answer which gives the kinetic energy of the ball.

8 0
3 years ago
Which term is defined as an elongated area of low pressure?
fenix001 [56]

Answer:

A trough

Explanation:

A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure.

I HoPe ThIs Helps!!!

6 0
3 years ago
an object was accelerated with a force of 150 N from rest to a velocity of 10m/s in 5 sec. the force of friction opposing the ob
astra-53 [7]

Force = (mass) x (acceleration)

Mass  =  (force) / (acceleration)

There was 150N of force in one direction and 100N of 'force' in
the other direction.  The net force on  the object was (150 - 100) = 50N .

Acceleration = (change in speed) / (time for the change)
                     = (10 m/s) / (5s)  =  2 m/s²

Mass = (net force) / (acceleration) = (50 N) / (2 m/s²) = 25 kilograms

7 0
3 years ago
A 22kg box slides down a 30.0 degree incline. If there is no friction, what is the acceleration of the box?
Rashid [163]

Answer:

Acceleration of the box is 4.9 m/s².

Explanation:

The free body diagram is shown below.

The weight of the body can be resolved into two mutually perpendicular components as shown. The force responsible for sliding motion of the box along the incline is due to mg\sin \theta acting along the incline.

Therefore, as per Newton's second law of motion,

Net force = mass\times acceleration

Now, net force acting along the incline is only mg\sin \theta

Therefore,

mg\sin \theta=ma\\a=g\sin \theta

Now, g=9.8\textrm{ and } \theta = 30

Therefore, the acceleration of the box is given as:

a=9.8\times \sin(30)=9.8\times 0.5=4.9\textrm{ }m/s^{2}

Acceleration of the box is 4.9 m/s².

6 0
4 years ago
Bart runs up a 2.91 meters high flight of stairs at a constant speed in 2.15 seconds. If barts mass is 65.9kg determine the work
Tanzania [10]

Answer:

1879.33J

874.1W

Explanation:

Given parameters:

Distance covered  = 2.91m

Time taken  = 2.15s

Mass of Bart = 65.9kg

Unknown:

Work done  = ?

Power rating  = ?

Solution:

Here, the work done is related to the the potential energy in climbing this flight of stairs.

  Work done = Potential energy  = mgH

where m is the mass

           g is the acceleration due to gravity

           H is the height

Work done  = 65.9 x 9.8 x 2.91  = 1879.33J

Power is defined as the rate at which work is being done.

         Power = \frac{Work done }{time taken}

                     = \frac{1879.33}{2.15}

                      = 874.1W

6 0
3 years ago
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