Which statements describe characteristics of paintings from Picasso's Blue Period? Choose all answers that are correct.

They have delicate outlines to evoke a feeling of calm.
Figures in them have long limbs and faces, similar in style to paintings by El Greco.
They depict sad, lonely people.
The figures in them have angular shapes and patterns.

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.