Table of Contents

## What is the variable for mass in physics?

Dependent Variable

Independent Variable is the volume of the object. Dependent Variable is the mass of the object.

## What is constant mass system?

Definition: Newton’s Second Law of Motion for Constant Mass The magnitude of the acceleration depends on the magnitude of the force and on the mass of the body according to the formula 𝐹 = 𝑚 𝑎 , where 𝑚 is the constant mass of the body and 𝑎 is the acceleration of the body.

**What is momentum conservation in a variable mass system?**

Momentum is conserved in a variable mass system if and only if external forces acting on the system adds up to 0, by Newton’s second law. If velocity is constant, momentum will be non zero since dtdM=0.

### What is meant by DM DT?

dm/dt means mass flow measured near the outlet of the ground loop, stated in pounds per hour; Sample 1.

### What does variable a mean in science?

The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.

**Is speed a variable?**

Variable speed: A object is said to be in variable speed when the object covers a different distance at equal intervals of times. Average speed: Average speed is defined as the uniform speed which is given by the ratio of total distance travelled by an object to the total time taken by the object.

## Is mass variable or constant?

So, generally speaking: yes, mass is a constant. However, according to Einstein’s special theory of relativity, on reaching speeds comparable to the speed of light, the mass of the moving body increases with speed.

## What is the variable for momentum?

Momentum depends upon the variables mass and velocity. In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object.

**Is variable mass system in JEE Advanced syllabus?**

Variable mass and rocket propulsion is already there in Ncert besides it’s included in the syllabus of jee. So yes you have to prepare for this topic as questions could be asked from this topic also.

### What is DV and DT?

dv/dt=a(T) , means that when we differentiate velocity, that’s dv, with respect to time,that’s dt, we get acceleration, that’s a(t). The ‘t’ mentioned in the bracket shows that acceleration is the function of time (it means that it’s value changes with time).

### Why is F DP DT?

Newton’s second law, in its most general form, says that the rate of a change of a particle’s momentum p is given by the force acting on the particle; i.e., F = dp/dt. Thus, the momentum associated with the centre of mass is the sum of the momenta of the parts.

**What is a variable simple definition?**

A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.