Consider a toy rocket that undergoes one dimensional motion. it is launched from rest straight up from the ground and rises under constant acceleration for δt1 seconds, where it loses power. it hits the earth δt2 seconds later. you can consider δt1 = t1 – t0 and δt2 = t2 – t1. what was the toy rocket’s acceleration before t1?

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.