Category: Physics

Applications of Kinetic and Static Friction

Post author By Hemant More
Post date March 17, 2020
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Science > Physics > Friction > Applications of Friction In this article, we shall understand why does kinetic friction is smaller than the static friction and why it is easier to roll than solid. We shall also study some everyday examples in which friction is used. To produce relative motion between two bodies in contact […]

Tags Ball bearings, Bearings, Coefficient of dynamic friction, Coefficient of static friction, Dynamic friction, Friction, Frictional force, Kinetic friction, Laws of kinetic friction, Laws of static friction, Lubrication, Need of lubrication, Origin of friction, Rolling friction, Self adjusting force, Sliding friction, Static friction, Threads on tyres

Physics

Friction

Science > Physics > Friction > Concept of Friction Friction or force of friction is a force which comes into existence when two bodies in contact have relative motion or tending to have relative with respect to each other and oppose the motion. Characteristics of Friction: Force of friction is always opposites to the force […]

Tags Ball bearings, Bearings, Coefficient of dynamic friction, Coefficient of static friction, Dynamic friction, Friction, Frictional force, Kinetic friction, Laws of kinetic friction, Laws of static friction, Lubrication, Need of lubrication, Origin of friction, Rolling friction, Self adjusting force, Sliding friction, Static friction, Threads on tyres

Physics

Numerical Problems on Projectile Motion – 01

Post author By Hemant More
Post date March 17, 2020
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Science > Physics > Projectile Motion > Numerical Problems on Projectile Motion – 01 Example – 01: A body is projected with a velocity of 49 m/s at an angle of 30o with the horizontal. Find a) the maximum height reached by the body, b) the time of ascent, c) the time of flight, d) […]

Tags Angle of projection, Horizontal projection, Maximum height reached, Maximum range, Path of projectile, Projectile, Projectile motion, Range, range of projectile, Time of ascent, Time of descent, Time of flight, Trajectory of projectile, Velocity of projection

Physics

Projectile Motion

Science > Physics > Projectile Motion > Analytical Treatment of Projectile Motion When a body is thrown making an acute angle with the horizontal, the body is said to perform the projectile motion. The path of the body performing projectile motion is called a trajectory. Example: A ball thrown by a fielder to the wicketkeeper, […]

Tags Angle of projection, Horizontal projection, Maximum height reached, Maximum range, Path of projectile, Projectile, Projectile motion, Range, range of projectile, Time of ascent, Time of descent, Time of flight, Trajectory of projectile, Velocity of projection

Physics

Newton’s Equations of Motion

Post author By Hemant More
Post date March 16, 2020
17 Comments on Newton’s Equations of Motion

Science > Physics > Motion in a Straight Line > Newton’s Equations of Motion In this article, we shall study to solve problems based on Newton’s equations of motion. First Equation of Motion: Let u = initial velocity of a body, v = final velocity of the body t = time in which the change in velocity takes […]

Physics

Numerical Problems on Displacement, Average Speed, Velocity

Post author By Hemant More
Post date March 16, 2020
14 Comments on Numerical Problems on Displacement, Average Speed, Velocity

Science > Physics > Motion in a Straight Line > Numerical Problems on Displacement, Average Speed, Velocity In this article, we shall study to solve problems to calculate displacement, Average Speed, and average Velocity. Example – 01: A train travels a distance of 100 m due east in 10 seconds. What is its speed and […]

Tags Acceleration, Acceleration due to gravity, Average speed, Average velocity, Body at rest, Constant velocity, Displacement, Distance, Dynamics, Kinematics, Length of path, Mechanics, One dimensional motion, Speed, Variable acceleration, Variable velocity, Velocity

Physics

Terminology of Motion

Science > Physics > Motion in a Straight Line > Terminology of Motion Motion is an important part of our life. Our daily activities involve motion of different kinds. In this topic, we shall study the terminology of motion. Mechanics: The branch of physics which deals with the effects of forces on object is called […]

Tags Acceleration, Acceleration due to gravity, Body at rest, Constant velocity, Displacement, Distance, Dynamics, Kinematics, Length of path, Mechanics, One dimensional motion, Speed, Variable acceleration, Variable velocity, Velocity

Physics

Elastic and Inelastic Collision

Post author By Hemant More
Post date March 12, 2020
6 Comments on Elastic and Inelastic Collision

Science > Physics > Force >Elastic and Inelastic Collision When two bodies moving along a straight line collide with each other the collision is called the head-on collision. In a head-on collision, the initial and the final velocities are along the same straight line. Elastic Collision: The collision in which the total kinetic energy, as […]

Tags Coefficient of restitution, Conservation of momentum, Elastic collision, Head on collision, Inelastic collision, Kinetic energy, Momentum

Physics

Moment of Force

Science > Physics > Force > Moment of Force In this article, we shall study the concept of moment of force, its characteristics, and applications in everyday use. Rigid Body: A rigid body is one whose geometric shape and size remains unchanged under the action of an external force. In the rigid body, the distance […]

Tags Axis of rotation, Couple, Moment of couple, Moment of force, Principles of moments, Rotational motion, Torque

Physics

Couple

Science > Physics > Force > Couple In this article, we shall study the concept of a couple, its characteristics, and applications. Parallel Forces: Forces which are not concurrent and their lines of action are not the same and parallel to each other then the forces are called parallel forces. Example: Children sitting on a […]

Tags Axis of rotation, Couple, Equilibrium of body, Moment of couple, Moment of force, Parallel forces, Principles of moments, Rotational motion, Torque