"VELOCITY and ACCELERATION versus TIME in a STRAIGHT LINE. An object has an initial velocity VELINIT and is accelerated at a constant rate ACCELER to average velocity VELOAVE and travels DISTANCE in TIME. ------------- ACCELER │ OBJECT │ ----> straight line │ │ VELOCITY -----------> ------------- ----> | .......>.....>.......>.....| 0 TIME Use these equations when acceleration, velocity and time are important factors. A=accleration, V=final velocity at time T, S=distance traveled at time T. Enter at least two variables with nonzero values. For constant velocity, V=VELINIT. (c) Copyright PCSCC, Inc., 1993 *** Answer to problem *** Assume an instantaneous arrival of the light. The sound travels at 1095 ft/s. Type ?, then (esc) 0 (enter) to set all variables to zero. Set T to 5.2. Set both V and VELINIT to 1095. As a consistency check, ACCELER=0 and VELOCAVE=1095 and DISTANCE=5694 ft. Type any key to exit. ||While at an army base, a person observes the flash of an M1-A1 tank's main gun and hears the sound 5.2 s later. (a) If sound has a velocity of1095 ft/s in that region, how far away is the tank? Type comma key to see answer. Type (F2) to return to helpfile."
