A force of 100. newtons is used to move an object a distance of 15 meters with a power of 25 watts. Find the time it takes to do
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Answer:
The height of the drop is 3.24 m.
Explanation:
As the ball is dropped from a mystery height and it takes 0.9 seconds to hit the ground with the acceleration of 8 m/s2. Then the velocity with which the ball is thrown can be determined as
As the acceleration is 8 m/s2 and time is 0.9 s. Then
So we know, the velocity u = 7.2 m/s , acceleration a = 8 m/s2 and time taken to reach the ground as t = 0.9 s. Thus, the height of the drop will be equal to the displacement of the ball from the top to the ground. Thus with the help of second equation of motion, we can determine the height as height will be equal to displacement (s).
Thus,
Thus, the height of the drop will be 3.24 m.