Recent content by starchild75

It's not a multiple choice question. You have no idea what I have been going through the last few weeks, so don't judge me. Watching someone you care about take their last breaths makes it a little bit more difficult to focus on which formulas work for which situations. If you want to point...

Using your formula, I got 3 seconds for the drop and the professor should be 2.5 meters. is that more accurate?

Homework Statement You are on the roof of a physics building, which is 46.0 m above the ground. Your physics professor, who is 1.80 m tall, is walking alongside the building at a constant rate of 1.20 m/s. If you wish to drop an egg on your professor's head, how far from the building...

I got 650 and it says there is a rounding error.

I got 881 for height.

The final velocity is 49 m/s Now what do I do?

I know when the rocket hits its maximum height, the velocity is zero.

All these formulas have two unknowns.

final velocity^2 +initial velocity^2 +2ah. I don't know the final velocity or the initial velocity.

does final velocity equal 2 ah?

No. I have been looking at this for five hours now. I don't know the velocity or the time. So I don't know how I can solve the problem. ,

What does u represent?

how do I find final velocity when just given acceleration and height?

How do I find t?

Homework Statement A 7400 kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.15 m/s^2 and feels no appreciable air resistance. When it has reached a height of 560 m, its engines suddenly fail so that the only force acting on it is now gravity. a...