Newton's first law of motion states that an object that is resting (not moving) will stay motionless unless an external force acts on it and an object in motion will stay in motion unless an outside force acts on it. This law is known as newton's law of inertia.
The distance from the sun to Neptune is about the same as the distance from Neptune to the next closest star, Proxima Centauri
Explanation:
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Answer:
The displacement, velocity and time is 20.4 m, -4.52 m/s and 3.624 sec.
Explanation:
Given that,
Initial velocity =15.0 m/s
Height = 10 m
We need to calculate the displacement at 2 sec
Using equation of motion

Put the value into the formula

At 2 sec,


We need to calculate the time
Using equation of motion again

At ground s = 0,



Neglect the negative term because the time is not negative
We need to calculate the velocity
Using formula of velocity



Hence, The displacement, velocity and time is 20.4 m, -4.52 m/s and 3.624 sec.