Long distance runners usually maintain an average speed of 4 m/s when they run events. If a cross country race was 6.2 miles long, how long would a runner maintaining this pace take to finish the event? Record your answer in seconds

i need the answer to this too but idk it ; -;

there are no correct statementd on the list of choices you provided.

an electric circuit

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.