Force and Power

Conservative forces || Power || Equilibrium

Dot product is used in the determination of (a) Work done by a force (b) Power developed by an automobile moving with uniform velocity. (c) The normal flux linked with a coil kept in magnetic field. (d) The force acting on a conductor carrying current kept in a magnetic field

Show that power is the product of force and velocity.

A pump motor is used to deliver water at a certain rate from a given pipe. To obtain 'n' times water from the same pipe in the same time by what amount (a) the force and (b) power of the motor should be increased ?

Define instantaneous power. Express it as the scalar product of force and velocity vectors.

Force acting on a particle varies with the distance travelled by the particle as F prop(1)/((x)^(1/3)) then power due to this force varies with as:

Statements: All forces are energies. All energies are powers. No power is heat. Conclusions: I. Some forces are definitely not powers. II. No heat is force.

A block of mass m is pulled by a force of constant power P placed on a rough horizontal plane. The friction coefficient between the block and the surface is mu . Then