Imagine looking at a coil of wire that was on your desk, wrapped around the circular frame of a clock. There are "N" turns and the area of the coil is A. The Earth's magnetic field, B, travels downward through the coil. In a fit of anger you decide to squish the coil to smithereens. In doing so you changed the area through which the field was traveling. What current would result, and in what direction?

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table

c. magnitude and direction

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.