Initial velocity = 0
time = 2.50 s
acceleration = gravity, 9.8 m/s^2
use the equations for linear motion.
s = ut + (1/2)at^2
v = u + at
A. displacement given u, a and t.
s = (0)(2.50) + (1/2)(9.8)(2.50)^2
s = 0 + 4.9(6.25)
s = 30.625 m
three significant figures..
s = 30.6 m
B. final velocity given u, a and t
v = 0 + 9.8(2.50)
v = 24.5 m/s
C. graphs
s vs. t
object starts at zero and displacement increases linearly to (2.5, 30.6) and stops. slope of line is average velocity, s/t
v vs. t
object starts at zero velocity and increases linearly to (2.5, 24.5) and stops. slope of line is acceleration, v/t.
a vs. t
acceleration is gravity, it's constant horizontal line at; y = 9.8. stops at (2.5,9.8)
Answer:
A heavy ball of demolition machine is storing energy when it is held at an elevated position .
I think the mantle is mostly made up of silicon. I am not sure of the answer.
<span>Instantaneous velocity is calculated at a specific point and average velocity is calculated over a distance.
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Let's say I was taking a ride in my car to another city, and I drove for an hour. If the other city was 60 miles away, that means my average velocity would be 60 mph. But, during that trip, I got caught in a traffic jam, where at some point in time I was going 20 mph. That would be an example of instantaneous velocity.
I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
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