What two things do you need to know to describe the velocity of an object?
2 answers:
By definition, we have that the speed of an object is given by:
Where,
d: distance [in units of length: meters, feet, miles]
t: time [in units of time: minutes, seconds, hours]
Therefore, knowing the distance traveled, and the time to travel this distance, we can know the speed of an object.
Then, since velocity is a vector, then we need the direction of the vector.
Therefore, the velocity vector can be written as:
Answer:
two things you need to know to describe the velocity of an object are:
1) Magnitude (speed)
2) direction
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Answer:
Explanation:
Initial speed, v = 10 x 10^3 m/s
Mass of the earth, M = 6 x 10^24 kg
Radius of the earth, R = 6.4 x 10^6 m
Maximum from the surface of earth, h = ?
Let m = Mass of the projectile
Solution:
Potential energy at maximum height = ( Potential + Kinetic energy ) at the surface
=
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