The building is h=.5 gt^2 meters tall; that is = .5x9.8 x25 =122.5 meters.
Yes, have you ever had a shot dropped in your beer before?
Head East until you see a skyscraper with a green tip. You can only jump an inch before hitting a wall
No, the compressions found on the slinky will be different before and after hitting the wall. Before hitting the wall, the compressions will be moving towards the wall. After hitting the wall, the compressions will be reflected back towards the source of the disturbance.
The term for hitting the ball before it bounces in a game is called a "volley."
It's exactly the gravitational potential energy that the stone had, relativeto the ground, before it was dropped:M G H = (9.8) x (the stone's mass) x (the height of the building) joules
The ball had potential energy before it was dropped. This potential energy was due to its position above the ground.
Still accelerating til it hits earth. ====================================== The height from which she dropped the ball is irrelevant. In any case, the ball was most likely moving at the greatest speed just as it hit the ground. The answer to the question is: zero.
Assuming free fall in a vacuum, we can calculate the height using the equation h = 0.5 * g * t^2, where g is the acceleration due to gravity (9.81 m/s^2) and t is the time (0.109s). Plugging in the values, we get h = 0.5 * 9.81 * (0.109)^2 = 0.056m, or 56cm.
For the last 1.5m:s = ut + (1/2)at21.5 = ut + (1/2)*10*(109)21.5 - (1/2)*10*(109)2 = u * 109u = -545 ms-1It seems that for this situation to even exist, the lead weight must start going upwards from 1.5m at a speed greater than the speed of sound. This cannot happen if it's dropped off a building, obviously.For the situation to be believable, the time would have to be much shorter, or the distance much larger.
The potential energy of the rock at the top is given by PE = mgh = 2200 N * 15 m = 33,000 J, which is converted to kinetic energy just before hitting the ground. So the kinetic energy just before hitting the ground is also 33,000 J.
Hurricane Sandy briefly reached category 3 intensity before hitting Cuba. It had weakened to a category 1 before hitting the U.S.
17. He dropped out right before his 18th birthday.