Recent content by username111

Homework Statement i'm launching a small ball from a launcher (on a table) at 55 degrees into rings (at .25, .50, .75, 1) and to a target on the floor. height from the floor to the launcher: 1.015m angle: 55 velocity: 6.62 m.s i have to find how far each ring will have to be from the...

Homework Statement As a traffic light turns green, a waiting car starts with a constant acceleration of 6.0 m/s^2. At the instant the car begins to accelerate, a truck with a constant velocity of 21 m/s passes in the next lane. A)How far will the car travel before it overtakes the truck...

i have all of the following formulas: vf = vi+at d = (vf+vi)/2 x t d = (vi)(t) + 1/2(a)(t)^2 vf^2 = vi^2 + 2(a)(d) 1) Highway safety engineers build soft barriers so that cars hitting them will slow down at a safe rate. A person wearing a safety bel can withstand an acceleration of -300...

i got them. thanks a lot! my "teacher" doesn't go over problems with us, just gives us formulas, so every bit of help goes far. :)

Homework Statement 1) A rocket traveling at 155 m/s is accelerated at a rate of -31.0 m/s^2. a. how long will it take before the instantaneous speed is 0 m/s. b. how far will it travel during this time? c. what will be it's velocity after 8.00 s? Homework Equations i have all of the...