A projectile of mass m is fired horizontally with an initial

Last updated: 7/4/2022

A projectile of mass m is fired horizontally with an initial speed of vo from a height of h above a flat, desert surface. Neglecting air friction, at the instant before the projectile hits the ground, find the following in terms of m, vo, h, and g. (a) the work done by the force of gravity on the projectile W = mgh (b) the change in kinetic energy of the projectile since it was fired AKE = mgh (c) the final kinetic energy of the projectile KE= 1/2mv²0+ mgh X (d) Are any of the answers changed if the initial angle is changed? Yes No