Recent content by !!!

Okay, so I calculated the ship's engine's acceleration again: a = f/m = 8.0 x 104N / 3.6 x 107 kg = 2.22222 x 10-3 m/s2 Then I tried to find the time it takes for the ship to hit the reef: vx = v0x + axt 1.5 = 0 + (2.22222 x 10-3)(t) t = 675s. And plugged it into the distance traveled: x = x0...

Homework Statement An oil tanker's engines have broken down, and the wind is blowing the tanker straight toward a reef at a constant speed of 1.5 m/s. When the tanker is 500 m from the reef, the wind dies down just as the engineer gets the engines going again. The rudder is stuck, so the only...

Homework Statement An oil tanker's engines have broken down, and the wind is blowing the tanker straight toward a reef at a constant speed of 1.5 m/s. When the tanker is 500 m from the reef, the wind dies down just as the engineer gets the engines going again. The rudder is stuck, so the only...

I still don't know how to rearrange them D:

Homework Statement http://img90.imageshack.us/img90/8280/picture1mc2.png In my answer guide, how do I eliminate h from the beginning part of this equation? Can someone give me hints to fill in the missing gap? Homework Equations None The Attempt at a Solution I don't know how to get...

Wait, am I supposed to find the x or y-component of v^2 = v_0^2 + 2 a \Delta x , and do I plug in the 1.25 acceleration or gravity? =/

But how do I know what's the initial velocity if I don't know the time? D:

I can't think of a kind of formula that relates distance, acceleration and speed. .___.

Won't the speed of the rocket be zero since at the highest point? Because the final y-velocity is zero, and the final x-velocity is , so it's zero since it's the same as the initial x-velocity.

Homework Statement A test rocket is launched by accelerating it along a 200.0-m incline at 1.25 m/s2 starting from rest at point A. The incline rises at 35.0° above the horizontal, and at the instant the rocket leaves it, its engines turn off and it is subject only to gravity (air resistance is...

Homework Statement What's the cliff's height (m) if a fallling boulder takes 1.3 s to fall the last 3rd of the way to the ground? Air resistance is ignored, and the problem requires a quadratic formula. Homework Equations I think it's the constant x-acceleration formulas, which I can't...