ESSE 1010 Lecture Notes - Galilean Moons, Space Debris, Extraterrestrial Skies

1. What is the method used to measure the distance between any planet and earth?

The 2-lb brick slides down a smooth roof, such that when it is at A, it has a velocity of 5 ft/s. Determine the speed of the brick just before it leaves the surface at B, the distance d from the wall to where it strikes the ground, and the speed at which it hits the ground.

you have been hired to design a family-friendly seesaw

rom the end of the board when seated. You have selected a child of mass,  (seated furthest from the pivot) and an adult of mass, (seated closest to the pivot) to test out your prototype.

a. Determine the distance d in meters.

b. Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons.