Explain how we walk. In our daily life, you walk or run on the ground. When we walk on the ground, we accept a backward force on the ground by the leg behind obliquely. This is the action force. According to the third law, a reaction force is produced opposite to this. We are able … Read more
When a shot is fired from a gun, the gun pushes backward why? When a shot is fired from a gun the gun is pushed backward at the time. In this case, the action and reaction force off the bullet and the gun exist at the same time. According to Newton’s second law of motion, … Read more
Though fiction has many advantages it is considered a necessary evil. We cannot do anything without the force of friction. If there was no friction, the motion of a body would not cases at all and continue perpetually. Due to friction, a nail is fixed in a wall. It became possible to construct buildings and … Read more
Velocity of a car decreases when it is suddenly braked, as a result deceleration occurs. In this case, the velocity is decreased by applying force opposite to the motion of the car. Deceleration is the decreasing rate of velocity with time. This is why deceleration occurs when a moving car is suddenly braked.
When a body tends to remain in motion because of velocity then it is called inertia of motion. So, the characteristic of a body in motion wanting to keep its motion is called the inertia of motion. The inertia of the motion of a body depends on its momentum. When a moving bus is suddenly … Read more
According to Newton’s law, a stationary object will remain stationary and an object in uniform motion will continue its uniform motion. From Newton’s first law, a force should be applied to change the stationary and motion state of a body. The characteristics of a body to keep its safe is called inertia.
Explain Pascal’s law. Pascal’s law is a principle in fluid mechanics given by Balise Pascal that states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.