Let the index of refraction for air be 1.00 and the index of refraction for the type of glass in this problem be 1.6. A light beam in air has an angle of incidence of 68° at the surface of a glass plate. Part (a) Calculate the angle of reflection in degrees.
Part (b) Calculate the angle of refraction in degrees.

the area between the graph and the t axis

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.