velocity algebra problems?
A flare is launched from a lifeboat with an initial velocity of 192 feet per second. How many seconds will it take for the rocket flare to return to sea? Use the formula h=vt-16tsquared
A flare is launched from a lifeboat with an initial velocity of 192 feet per second. How many seconds will it take for the rocket flare to return to sea? Use the formula h=vt-16tsquared
Comments
Simply put h = 0.
Then vt - 16t² = 0, with two solutions:
t = 0 (time of launching)
t = v/16 = 192/16 = 12 s
one thank you to paintings the priority could be to hit upon the time the bullet would be interior the air. This section is all concerning the vertical speed ingredient. understanding the acceleration of gravity to be 30 ft / 2nd^2, we divide 320 / 30 and get 10.sixty six seconds till the suitable component to the bullet's trajectory. Then it has to fall each and all the earlier all the way down to earth, for a whole flight time of 21.33 seconds. in the time of that flight time, the bullet is likewise shifting sideways at 320 f/s * 21.33 f = 6826.sixty six ft or approximately 6830 ft. So somewhat over a mile. careful, TBT, we are working in ft. Gravity's approximately 10 m/s^2, yet approximately 30 f/s^2....