An arbitrary shape. The word arbitrary in this context means any as in: not a specified, or specific, kind of shape.
Table of Contents
What is the name of Chapter 4 in physics class 11?
Access answers of NCERT Solutions for Class 11 Physics Chapter 4 โ Motion in a Plane.
What is motion in a plane Class 11 notes?
Motion in a plane is called as motion in two dimensions e.g., projectile motion, circular motion etc. For the analysis of such motion our reference will be made of an origin and two co-ordinate axes X and Y. Scalar Quantities.
What is plane in physics class 11?
A plane angle is made between the crossing of two straight lines or the junction of two planes. The SI unit of plane angle is radian, and it is expressed as ‘rad,’ where ‘radian’ is the angle made at the centre of a circle by an arc whose length is equivalent to the radius of the circle because it has two dimensions.
What is motion in a plane?
Motion in a plane refers to the point where we consider motion in two dimensions as only two dimensions makes a plane. Here, considering the above, we take two axes into consideration โ generally X-axis or Y โ axes.
What is arbitrary motion?
Arbitrary motion refers to oscillations that grow or decay at a specific frequency. It can be interpreted as a random direction used to refer to some motion. It is not required to produce anything from that direction. It has nothing to do with the direction in such questions about arbitrary motion.
What is circular motion class XI?
Circular motion is a motion in which a body travels a definite distance along a circular path.
What is scalar and vector quantity?
A quantity that has magnitude but no particular direction is described as scalar. A quantity that has magnitude and acts in a particular direction is described as vector.
What is a vector class 11 physics?
The quantities which have both magnitude and direction are called vectors. Examples are velocity, force, displacement, weight, acceleration, etc. The quantities which have only magnitude and no direction are called scalar quantities.
Why do we need vectors Class 11?
Vectors are the most basic and important part of Calculus. We represent 3-dimensional space using vectors. We do 3D geometry completely using the properties of vectors. Any problem in science which has to deal with the direction component has to be done with the help of vectors.
What is the SI unit of plane angle?
solid and the English word radian, a steradian is, in effect, a solid radian; the radian is an SI unit of plane-angle measurement defined as the angle of a circle subtended by an arc equal in length to the circle’s radius.
What is rest motion?
Rest and Motion Definitions Rest: An object is said to be at rest if it does not change its position with respect to its surroundings with time. Motion: An object is said to be in motion if the position changes with respect to it surrounding and time.
What is the unit of plane angle?
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What are the 4 types of motions?
- linear.
- rotary.
- reciprocating.
- oscillating.
What is velocity on a plane?
A positive velocity is defined to be toward the tail of the aircraft. The airspeed can be directly measured on the aircraft by use of a pitot tube. For a reference point picked on the aircraft, the ground moves aft at some velocity called the ground speed.
What is 2D motion class 11?
When the object travels in x and y coordinates with a constant velocity, it is known as two-dimensional motion.
What is arbitrary angle?
An arbitrary angle is of an unspecified and insignificant size. It is an angle whose size does not matter for the purposes of the particular question being considered.
What is arbitrary vector?
Arbitrary vector v is expressed by the linear combination of the independent vectors a , b , c as follows: (1.62) where the coefficients v a , v b , v c are given by operating the scalar products of aรb, bรc, and cรa to Eq. ( 1.62) as follows: [ abv ] = v c [ abc ] , [ bcv ] = v a [ abc ] , [ cav ] = v b [ abc ]
What is the SI unit of acceleration?
Acceleration (a) is defined as the rate of change of velocity. Velocity is a vector quantity, and therefore acceleration is also a vector quantity. The SI unit of acceleration is metres/second2 (m/s2).
Why is it called accelerated motion?
because the velocity changes as the direction is changing so the acceleration also occurs that’s why it’s called as accelerated motion.
What is called uniform acceleration?
Translation: If an object’s speed (velocity) is increasing at a constant rate then we say it has uniform acceleration. The rate of acceleration is constant. If a car speeds up then slows down then speeds up it doesn’t have uniform acceleration. uniform acceleration.
Which quantity is velocity?
Velocity is a vector quantity having both magnitude and a direction.
Is velocity a vector?
Velocity is a vector quantity. As such, velocity is direction aware. When evaluating the velocity of an object, one must keep track of direction.
Is force a vector?
A force has both magnitude and direction, therefore: Force is a vector quantity; its units are newtons, N. Forces can cause motion; alternatively forces can act to keep (an) object(s) at rest.
Is vector important for NEET?
Vectors are a very important topic in Physics for NEET as well as for the board exams. It is covered very well in the Class 11 Physics NCERT textbook.