Apot of water is boiling under one atmosphere of pressure. assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. in two minutes, the mass of water boiled away is m = 3.5 kg. the radius of the pot bottom is r = 5.5 cm and the thickness is l = 2.0 mm. what is the temperature of the heating element in contact with the pot?

b.

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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.