Runner a and runner b race around 1600 meters ata a different speed. Runner A travels this distance in 7 minutes and runner B travles this distance in 6 minutes and 34 seconds. Calculate the speed of both runners in meters per second.

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?