A neutral glass rod is rubbed with silk. During the interaction, the silk and the rod become oppositely-charged. Which charging method does this demonstrate? (AKS
7b)
glass
silk
Friction
Grounding
Induction
Conduction

anchor = archer //

momentum of soft ball three times less than baskey ball

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

prndulum needs thread, weight clock to time swings