Perebipereereidn
Answered

Get the answers you've been looking for with the help of IDNLearn.com's expert community. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

A stone is thrown vertically upward from the top of a platform with an initial velocity of 10m/s. Calculate the height of the platform if it takes the stone 10secs to reach the ground. (g=10m/s2).​

Sagot :

Homeworkhelper272idn

Answer:

400 meters

Calculate how much time the stone take to achieve the highest point of its trajectory:

0 - 10 = -10 • t

-10 = -10t

t = -10/-10

t = 1

So, it took 1 second to achieve the highest point of trajectory. When the stone achieves it, its have velocity 0 and begin to fall, and it takes also 1 second to return to the top of the platform, so it means that during 2 seconds of the motion. The stone achieves the same high as the platform with the velocity of 10 m/s

Now let's calculate the distance its traveled to achieve the ground:

X = 10•8 + (10•8²)/2

X = 80 + 320

X = 400 meters

Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. Accurate answers are just a click away at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.