21. What is the mass of an object that produces a force of 900 N while accelerating at 12 m/s?? 22. What is the net force required to accelerate a 750 kg car at 5 m/s2?
23. A 20 kg object is being pushed with a force of 440 N. What is its acceleration?
24. Label the arrows of the free-body diagram of a person falling with a parachute with the
correct forces
Label Force
Label Force

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.