An iolab device starts from rest at point a. if there is no friction, then select one: a. the kinetic energy of the iolab device at d will be equal to its potential energy at a. b. the kinetic energy of the iolab device at e will be equal to its potential energy at c. c. the kinetic energy of the iolab device at a will be equal to its potential energy at b. d. the kinetic energy of the iolab device at b will be equal to its potential energy at c. e. the kinetic energy of the iolab device at c will be equal to its potential energy at a.

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

what is the question because that is not a question.

it is a negative acceleration

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.