Recent content by goombachu

Right. So now i have 2 unknowns then: initial velocity and acceleration. I don't readily see any of the standard kinematic equations that could help me find both? The only one that doesn't involve both unknown terms is d = avg_vel * t, but that doesn't really give me an initial "launch"...

OK maybe I should rephrase the problem then to be clear. I need to velocity to hit zero at a predetermined height (1 meter in this example), and it needs to take exactly a predetermined amount of time (.25 seconds in this example) to get to that height. A negative force (which I thought could be...

>> You can merely note in that regard that you will be decrementing by 9.8/30 = .32667m/s for each 1/30 That is what I thought as well, but: 0.25 secs * 30 ticks per second = ~8 ticks 0.32667 m/s * 8 ticks = 2.61336 meters So my velocity doesn't tick down to zero in the 0.25 seconds I...

Homework Statement I have a projectile that shoots straight up into the air (parallel to the y-axis). I need to calculate the initial velocity needed to reach a specific height. I am given the following: - the y-displacement (s1) to reach - the time (t) at which the projectile reaches the...