You throw a ball vertically upward so that it leaves the ground with velocity 5.68 m/s.

(a) what is its velocity when it reaches its maximum altitude? magnitude 0 correct: your answer is correct. m/s direction incorrect: your answer is incorrect.
(b) what is its acceleration at this point? magnitude -9.8 incorrect: your answer is incorrect. the response you submitted has the wrong sign. m/s2 direction incorrect: your answer is incorrect.
(c) what is the velocity with which it returns to ground level? magnitude -5.68 incorrect: your answer is incorrect. the response you submitted has the wrong sign. m/s direction correct: your answer is correct.
(d) what is its acceleration at this point? magnitude 9.8 correct: your answer is correct. m/s2 direction correct: your answer is correct.

are their multiple choices ?

explanation:

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.