You are on the roof of a Physics Building, 41 m above the ground. Your physics professor, who is 1.62 m tall, is approaching the building at constant speed of 1.85 m/s. If you wish to drop an egg on his head, how far should your professor be when you release the egg?

Here we go again (yes, this set of questions is starting to feel like Groundhog Day). You AGAIN wake up in a strange room, and this time you drop a ball from a height of 2.27 m, and observe that it hits the floor 0.204 s after you drop it. In this case you suspect you are in deep space, far from any planet or star, and that your rocket is accelerating due to the push of its own engines under the floor. In this case, what must the acceleration of your rocket be?     81.8 m/s^2     81.8 m/s^2     109.1 m/s^2     54.5 m/s^2

A spacecraft on its way to Mars has small rocket engines mounted on its hull; one on its left surface and one on its back surface. At a certain time, both engines turn on. The one on the left gives the spacecraft an acceleration component in the x direction of ax = 5.10 m/s², while the one on the back gives an acceleration component in the y direction of a = 7.30 m/s2. The engines turn off after firing for 670 s, at which point the spacecraft has velocity components of vx = 3515 m/s and vy = 4136 m/s. What was the magnitude and the direction of the spacecraft's initial velocity before the engines were turned on? Express the magnitude as m/s and the direction as an angle measured counterclockwise from the +x axis. magnitude direction m/s º counterclockwise from the +x-axis

A worker at the top of a 390-m-tall television transmitting tower in North Dakota accidentally drops a heavy tool. If air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?