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New answer posted
a year agoContributor-Level 10
Yes, according to the Motion in a Straight Line, for a moving object, the displacement can be zero, as it is the net change in position. It can also be defined as the shortest path between start and end points. If an object moves from a starting point and returns to the starting point, then the final position is the same as the initial position, and the net displacement becomes zero. However, the distance covered by a moving object can never be zero. The distance can be zero only if the object has not moved at all.
New answer posted
a year agoContributor-Level 10
The relative velocity is an object's velocity which may itself be in a motion as observed from a particular frame of reference. In a straight line (one dimension) if object A has velocity vA and object B has velocity vB, then the velocity of object B relative to object A (vBA) is given by vBA=vB? vA. Similarly, the velocity of A relative to B is v AB =vA? vB. It helps analyze situations like overtaking cars or objects moving towards/away from each other.
New answer posted
a year agoContributor-Level 10
The scalar quantities are physical quantities with no direction and only magnitude (size). Examples of scalar quantities are mass, temperature, speed and distance. On the other hand, vector quantities have both magnitude and direction. The examples are force, acceleration, displacement and velocity.
The scalar quantities can be described by a single number and vectors require both a directional component and a numerical value. In understanding motion, vectors are important because they indicate both the movement's amount and direction. In systems which are more complex with multiple forces or directions, vectors help accurately to repre
New answer posted
a year agoContributor-Level 10
Distance and displacement both refer to how far an object has moved, but the meanings are different. The distance is a scalar quantity and it is the total length covered by an object, irrespective of the direction. It is always positive, and talks about how much ground the object has covered. On the other hand, displacement is the vector quantity and refers to the change in position of an object from the initial to the final point. It considers both the magnitude and direction. It can be negative, positive or zero depending on the motion's direction. If one starts from an initial point and covers a distance of 5 meters and then comes b
New answer posted
a year agoContributor-Level 10
Motion in a straight line is used to describe an object's movement along a straight line in a single direction. It is also known as the rectilinear motion. In Motion in a Straight Line, the position of the object changes along one dimension and unless an external force is applied, its direction stays constant. The important concepts related to straight-line motion are velocity, displacement and acceleration. Acceleration measures any change in velocity, displacement refers to the change in position and the velocity indicates the speed and direction. Examples include an apple falling straight downward, and a car moving on a straight roa
New answer posted
a year agoContributor-Level 10
Redox Reaction Class 11 ncert solution are consider best resource to prepare for the exam. Solving the questions will familiarize with the exam difficulty level and important topics.
New answer posted
a year agoContributor-Level 10
Equilibrium class 11 ncert notes is good for the quick revision of the exam. However, to socre a good marks in exam students must attempt class 11 chemistry ch 7 ncert solutions.
New answer posted
a year agoContributor-Level 10
Under increasing load, the graphical representation showing the relationship between strain and stress for a given material is called the stress-strain curve. It provides the crucial information about the yield point (onset of payment deformation), material's elastic limit, fracture point (point of breaking), and ultimate tensile strength (maximum stress the material can withstand). The toughness of the material is represented by the area under the curve.
New answer posted
a year agoContributor-Level 10
Shear modulus (G) or rigidity modulus is the ratio of shearing stress to shearing strain within the elastic limit. It helps measure the solid's resistance to deformation by parallel forces acting tangentially on its surface. Mathematically,
G= Shearing Strain/Shearing Stress = (F/A)/0
Where, A is the area on which the force acts, F is the tangential force and is the angle of shear.
New answer posted
a year agoContributor-Level 10
According to the class 11 mechanical properties of solids, Bulk modulus (K) is within the elastic limit, the ratio of volumetric stress to volumetric strain. Bulk modulus measures the resistance of a solid or fluid to compression. Mathematically, it is represented as the,
K= Volumetric Strain/Volumetric Stress = -P/ (? V/V0)
Where P is the pressure applied, V0 is the original volume, and? V is the change in volume. The negative sign means that volume decreases with increasing pressure.
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