Afast ball travels at about 161kilometers/hr if this fast ball could keep its speed how long would it take this ball to travel 0.15 terameters?

The time that will be taken is 931677 hr.

Explanation: 1 terametre is equal to 10^9

Therefore 0.15terametre is equal to 1.5*10^8 km.

This formula is applicable v= d/t

The velocity is 161km/hr

Substituting the values we get t= 931677hr.

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.