This is the most important question. please dont just take the pts

a = 0.6259 m/s²

Explanation:

This is similar to previous questions, the only difference is the mph, miles per hour. Since all of the previous questions are in m/s, I would assume the same here, so you have to convert mph to m/s.

1 mile = 1609.34m

1 hour = 3600s

So 0 mph = 0 m/s

and 14 mph = 6.259 m/s (you can see the image below to see how to do unit conversion)

a = average acceleration

v = final velocity = 6.259 m/s

v0 = initial velocity = 0 m/s

t = time = 10 s

a = (v-v0)/t

a = (6.259m/s - 0m/s) / 10s

a = 0.6259 m/s²

b) phosphorus pentoxide

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.