# What must be the velocity of a moving body?

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## What must be the velocity of a moving body?

(d) velocity of a moving body is its speed in a given direction.

## What is necessary to describe motion of a body?

You can describe the motion of an object by its position, speed, direction, and acceleration.

## What is required to stop the moving body?

A force is required to stop a moving object.

## What is moving body in physics?

In physics, motion is when an object changes its position with respect to time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and frame of reference to an observer, measuring the change in position of the body relative to that frame with a change in time.

## Can velocity be zero for a moving body?

The average velocity of a moving body can be zero because, for a moving body, the displacement can be zero if the body returns to its initial location. But distance can never be zero.

## Can a body move without velocity?

Velocity is a vector, and speed is its magnitude. Ifspeed is nonzero, then velocity has a nonzero magnitude, and is therefore not a zero vector. Yesvelocity can be zero if displacement is zero. However the body must cover some distance and return to its initial position .

## What are the different types of motion a body can undergo?

- Linear Motion. In linear motion, the object moves from one position to another in either a curved direction or a straight line. …
- Rotary Motion. Rotary motion is a sort of motion in which the object moves in a circle. …
- Oscillatory Motion. …
- Periodic Motion.

## What is the state of motion of a body?

The state of motion of an object is described by its speed and the direction of motion. For a body having zero speed, the state of motion is rest. For a body having a constant speed, the state of motion is uniform motion. For a body having variable speed and (or) direction, the state of motion is non-uniform motion.

## What are the laws of motion of a body?

Newton’s laws of motion relate an object’s motion to the forces acting on it. In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration.

## What are 2 examples of inertia?

- Dust coming out of mat when beaten.
- Falling forward in transport when sudden breaks are applied.
- Leaves get detached from the tree when shaken hardly.
- Due to inertia, artificial satellites keep moving in a circular motion.

## Is force needed to keep a moving body in motion?

No , it is not necessary to apply force to keep the body moving as such. One a body is set in motion, Unless there is any external force it will continue to move with present state of motion.

## What is the resultant force called?

Net force (also known as resultant force) is the overall force acting on an object when all the individual forces acting on the object are added together. The net force is a vector produced when two or more forces act on a single object.

## What are 4 types of motion?

- linear.
- rotary.
- reciprocating.
- oscillating.

## Which is the SI unit of speed?

The SI unit of speed is the meter per second, abbreviated as m/s or ms-1.

## Who discovered motion?

Motion is the area of physics that studies how things move. It was developed about 300 years ago by Isaac Newton. He discovered that all objects move according to three basic laws. Newton’s Laws can explain almost all of physics.

## What is the velocity of a moving?

Solution: The velocity of a moving body is its speed in a given direction is a correct statement regarding the velocity and speed of a moving body. Velocity is a vector quantity which has both magnitude and direction. The speed of the moving object is always greater.

## What must be the velocity of a moving body of mass 2kg so that its ke is 25j?

Expert-Verified Answer v = 5 m/s Ans. Ans.) The velocity of a moving body is 5 m/s.

## What is the velocity of a moving vehicle?

The velocity of a moving car is given by v = X t + Y t where v is the velocity and t is the time. Then the SI units of X and Y respectively will be: m ; ms.

## What is the velocity of the body?

The velocity of a body is given by the equation v=𝑏t+ct2+dt3 The dimensional formula of b is.