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velocity and acceleration
A force is a push or a pull. Inertia is unchanging state (mass or velocity)
Force is the rate of change of momentum (which is the product of mass and velocity) whereas power is the rate of work done (product of force and displacement) In fact, it can be shown that power = force x velocity
moment is nothing but a force but momentum is the product of mass and velocity.
Increasing velocity means that the body is accelerating and a force is acting on the body to produce the acceleration. Uniform velocity means that there is no acceleration or deceleration and so no force acts on the body. (Note that in practice we cannot achieve perpetual motion because of either the decelerating force of gravity or friction).
velocity and acceleration
A force is a push or a pull. Inertia is unchanging state (mass or velocity)
Force is the rate of change of momentum (which is the product of mass and velocity) whereas power is the rate of work done (product of force and displacement) In fact, it can be shown that power = force x velocity
moment is nothing but a force but momentum is the product of mass and velocity.
Increasing velocity means that the body is accelerating and a force is acting on the body to produce the acceleration. Uniform velocity means that there is no acceleration or deceleration and so no force acts on the body. (Note that in practice we cannot achieve perpetual motion because of either the decelerating force of gravity or friction).
Centripetal force is = mass * velocity square divided by radius
Velocity is speed with direction
The difference between free fall and terminal velocity i that free fall is when an object is falling or descending through the air with little air resistance or drag. Terminal Velocity, on the other hand is when the resistance of air and the force of gravity balance each other out causing the object to reach a constant velocity. .
The technical difference is that speed has no direction but velocity has one.
muzzle velocity is the velocity of bullet and recoil velocity is the velocity of gun.
The difference in velocity between adjacent layers of the fluid is known as a velocity gradient and is given by v/x, where v is the velocity difference and x is the distance between the layers. To keep one layer of fluid moving at a greater velocity than the adjacent layer, a force F is necessary, resulting in a shearing stress F/A, where A is the area of the surface in contact with the layer being moved.
The difference in velocity between adjacent layers of the fluid is known as a velocity gradient and is given by v/x, where v is the velocity difference and x is the distance between the layers. To keep one layer of fluid moving at a greater velocity than the adjacent layer, a force F is necessary, resulting in a shearing stress F/A, where A is the area of the surface in contact with the layer being moved.