# Category: Chapter-3(Motion in a Straight Line) ## Relative VelocityRelative Velocity

Relative velocity is a measurement of velocity of an object with respect to other observer. It is defined as the ... ## Stopping Distance For A Vehicle and Reaction TimeStopping Distance For A Vehicle and Reaction Time

Stopping Distance For A Vehicle When breaks are applied to a moving vehicle, the distance it travels before coming to ... ## Kinematic Equations For Uniformly Accelerated MotionKinematic Equations For Uniformly Accelerated Motion

If an object moves along a straight line with a constant acceleration a. Let u be the initial velocity at ... ## Position-Time Graph: AccelerationPosition-Time Graph: Acceleration

(I) Positive Acceleration When distance covered by a moving object goes on increasing with time, the object is said to ... ## AccelerationAcceleration

The existence of acceleration was given by Galileo in his different thoughts. Acceleration of a body can be expressed as ... ## Instantaneous Speed And Instantaneous VelocityInstantaneous Speed And Instantaneous Velocity

Instantaneous Speed Speed at an instant is defined as the limit of the average speed as the time interval (∆t) ... ## Average Speed And Average VelocityAverage Speed And Average Velocity

Average Speed Average speed of an object is defined as the total distance travelled by the object divided by the ... ## Speed And VelocitySpeed And Velocity

Speed The distance covered by an object divided by the time taken by the object to cover that distance is ... ## Uniform Motion In A Straight LineUniform Motion In A Straight Line

A body is said to be in a uniform motion if it travels equal distance in equal intervals of time ... ## Point Object, Position, Path Length and DisplacementPoint Object, Position, Path Length and Displacement

An object is considered as a point object if the size of the object is much smaller than the distance ...