1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bezzdna [24]
3 years ago
9

if F, V, and we're chosen as fundamental unit of force, velocity and time respectively , the dimensions of mass would be represe

nted as​
Physics
1 answer:
alexandr1967 [171]3 years ago
3 0

Answer:

The dimension of mass can be represented as:  [F^{1}  T^{1} V^{-1} ]

Explanation:

We have  Force = Mass X Acceleration

                           = Mass X \frac{Change   in   Velocity}{Time   Taken}

                or, Mass  = Force x \frac {Time Taken }  { Change in Velocity }

                             So, dimensions of mass  = \frac{[F][T]}{[V]}

                                                                       = [F^{1}  T^{1} V^{-1} ]

You might be interested in
PHYSICS! I AM TIMED!
Lana71 [14]
28J because mechanical energy is the sum of the potential energy and kinetic energy
8 0
3 years ago
Read 2 more answers
In an experiment, students measure the position x of a cart as a function of time t for a cart that starts at rest and moves wit
Minchanka [31]

Given :

Initial velocity , u = 0 m/s² .

To Find :

The acceleration of the cart.

Solution :

Since, acceleration is constant.

Using equation of motion :

x = ut + \dfrac{at^2}{2}\\\\x = \dfrac{at^2}{2}

Putting, t = 1 s  and x = 4 m in above equation, we get :

4 = \dfrac{a(1)^2}{2}\\\\a = 8 \  m/s^2

Therefore, the acceleration of the cart is 8 m/s².

5 0
3 years ago
How can acceleration be changed without changing speed?
katrin [286]
Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both. If you're not changing your speed and you're not changing your direction, then you simply cannot be accelerating—no matter how fast you're going.
3 0
3 years ago
an empty boat floats in water with 10% of its volume submerged. and when it is loaded with 1200kg , the volume submerged will in
Lostsunrise [7]

Let volume of empty boat be = 100% = 1V

and mass of boat be M

In water 10%, 0.1V of the volume is submerged.

Mass, m of 1200kg increases the submerging from 10%, 0.1V to 70%, 0.7V

M leads to 0.1V boat submerging

boat submerging.

M + 1200kg leads to 0.7V boat submerging.

This is 60%, 0.6 V increase

By comparison

(M+1200kg) * 0.1V = 0.7V * M

0.1M + 120kg = 0.7M

120kg = 0.7M - 0.1M

120kg = 0.6M

M = (120/0.6)kg

M = 200kg.

The mass of the boat is 200kg.

4 0
2 years ago
To develop muscle tone, a woman lifts a 2.50 kg weight held in her hand. She uses her biceps muscle to flex the lower arm throug
Romashka [77]

To solve this problem we will use the concepts related to Torque as a function of the Force in proportion to the radius to which it is applied. In turn, we will use the concepts of energy expressed as Work, and which is described as the Torque's rate of change in proportion to angular displacement:

\tau = Fr

Where,

F = Force

r = Radius

Replacing we have that,

\tau = Fr

\tau = 21cm (\frac{1m}{100cm})* 550N

\tau = 11.55Nm

The moment of inertia is given by 2.5kg of the weight in hand by the distance squared to the joint of the body of 24 cm, therefore

I = 0.25Kg\cdot m^2 +(2.5kg)(0.24m)^2

I = 0.394kg\cdot m^2

Finally, angular acceleration is a result of the expression of torque by inertia, therefore

\tau = I\alpha \rightarrow \alpha = \frac{\tau}{I}

\alpha = \frac{11.55}{0.394}

\alpha = 29.3 rad/s^2

PART B)

The work done is equivalent to the torque applied by the distance traveled by 60 °° in radians (\pi / 3), therefore

W = \tau \theta

W = 11.5* \frac{\pi}{3}

W = 12.09J

4 0
3 years ago
Other questions:
  • How do the results of the rutherford experiment suggest that the nucleus is positively charged?
    9·1 answer
  • What should happen to the demand for speed (measured by the average speed on highways) once airbags are included on cars?
    5·1 answer
  • Scientists think the is a solid layer of iron with a liquid layer of iron around it
    10·1 answer
  • Energy is conventionally measured in Calories as well as in joules. One Calorie in nutrition is one kilocalorie, defined as 1 kc
    11·1 answer
  • Identify the best measure of center for each visual representation of a data set.
    7·1 answer
  • A space vehicle approaches a space station in orbit. The intent of the engineers is to have the vehicle slowly approach, reducin
    15·1 answer
  • A kicked ball rolls across the grass and eventually comes to a stop in 4.0 sec. When the ball was kicked, its initial velocity w
    10·1 answer
  • Formula:
    12·1 answer
  • the sun is one hundred and fifty million kilometers away from earth write this in scientific notation​
    5·1 answer
  • A cube of wood having an edge dimension of 20.0cm and a density of 650 kg /m³ floats on water. (b) What mass of lead should be p
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!