What is the height of the platform?

Question

A ball rolls horizontally with a speed of 7.6 m/s off the edge of a tall platform. If the ball lands 8.7 m from the point on the on the ground directly below the edge of the platform, what is the height of the platform?

Answer 1

Assuming no air resistance the time that it takes for the horizontal motion of 7.6m/s to reach 8.7m is 8.7/7.6 seconds. Use this time and the acceleration of gravity in the equation d = (at^2)/2 with a = 9.8m/s^2 to give the height

Answer 2

The platform top in many circumstances cancels out the heel top, so which you're taking that faraway from the heel and you get the real top of the heel. in case you want to get stilettos, then you definately ought to bypass slightly shorter than widely used because of the fact they are plenty harder to stroll in yet once you choose for a corpulent heel, placed on despite you experience mushy in. i does no longer bypass over 5 inches because of the fact any larger and your knees and ankles will harm lots probable in the past you even get there! i think of between 4 and 5 inches is a good top in case you want to choose for tall extreme heels. a good attempt (i want to propose doing this) is to place the shoes on and stand on your tip feet and spot how a techniques you could carry the heels of the shoes. If there's a million inch or extra between the heel and the floor, then they seem to be a good top yet whilst it is under a million inch, then they are too extreme. it relatively is an extremely good attempt to be sure in case you will be able to stroll in all of them night. good success!!

Answer 3

Both the times for vertical and horizontal flight is the same.

The time for horizontal distance = distance/ velocity

= 8.7 / 7.6

= 1.145 s.

The vertical distance traveled during this time is

s = 0.5 g t^2.

= 0.5 x 9.8 x 1.145 x1.145

= 6.424 m.

Answer 4

5.90m