2Chainz is kicked horizontally off a cliff. You notice that he takes 7 seconds to hit the ground, and lands 30 m from the base of the cliff. How fast was he going right after he was kicked (at the top of the cliff)? (answer in m/s)

yup its correct its: c) b b

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.