Two vectors can be added if both of them are of the same nature. Example:- A displacement vector cannot be added to a force but can we added to displacement vector only. The graphical method of addition of vectors are as under. 1. Triangle Law Of Vector Addition This law state that “If two vectors […]
When we multiply a vector A by a real number λ, then we get a new vector along the direction of vector A. Its magnitude becomes λ times the magnitude of the given vector. Similarly, if we multiply a vector A by a real number -λ, then we get a new vector whose magnitude is
In this post I have provided CBSE Class 10 Maths Deleted Portion 2022-23. This deleted portion is very important for those student who are preparing for their board examination 2022-23. If any student have any doubt regarding deleted syllabus then they can never prepare their Maths syllabus according to examination. That is why, here I
Position Vector A vector which gives position of an object with reference to the origin of a coordinate system is called position vector. It is represented by a symbol r. Let the motion of an object in x-y plane with origin at O. Let an object is at point A at any instant t, then
(I) Polar Vectors Vector which have a starting point or a point of application are called polar vectors. Example:- Force, Displacement etc (II) Axial Vectors Vectors which represent the rotational effect and acts along the axis of rotation are called axial vectors. Example:- Angular Velocity, Angular Momentum, Torque etc. (III) Modulus Vectors The magnitude of
Scalar Quantities The quantities which have only magnitude but no direction is called scalar quantities. It is specified completely by a single number along with a proper unit. Example:- Temperature, mass, length, time, work etc. Vector Quantities These are the physical quantities which have both magnitudes and directions and obey the triangle or parallelogram laws
Relative velocity is a measurement of velocity of an object with respect to other observer. It is defined as the time rate of change of relative position of one object with respect to another. Case-I : When the two objects move with same velocity in the same direction. Since, VA = VB ⇒VA-VB=0, then the
Stopping Distance For A Vehicle When breaks are applied to a moving vehicle, the distance it travels before coming to halt is called stopping distance. Its value depends upon the speed at which the vehicle is running and the efficiency of the breaking system. Let the distance travelled by the vehicle before it stops be
Stopping Distance For A Vehicle and Reaction Time Read More »
If an object moves along a straight line with a constant acceleration a. Let u be the initial velocity at t = 0 and v be the final velocity of the object after time t. (I) Velocity-Time Relation The slope of velocity-time graph, gives the acceleration of the object. (II) Position-Time Relation The area under
Kinematic Equations For Uniformly Accelerated Motion Read More »
(I) Positive Acceleration When distance covered by a moving object goes on increasing with time, the object is said to be have positive acceleration. (II) Negative Acceleration When distance covered by a moving object goes on decreasing with time, the object is said to be have negative acceleration. (III) Zero Acceleration When the moving object
