Answer:
Explanation:
average deceleration= ?
inial velocity:
final velocity:
time:
The first law of kinematics :
find a the subject of the formula
The deceleration about g(acceleration due to gravity) will be:
Answer:
The atomic mass of an element is the average mass of the atoms of an element, according to google. Sum of protons and neutrons in nucleus is the mass number and multiply by 1 amu gives you the mass of the atom
The change in velocity that occurs within an interval of time is known as ACCELERATION.
Acceleration is the rate of change of velocity with time. It is a vector quantity. The rate of change of velocity can be positive or negative. The positive change of velocity is called acceleration while the negative change in velocity is called deceleration.
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Answer: Direction
Explanation: A vector is a geometrical representation of physical quantity. It has a particular direction with a specific magnitude. In the geometry of space whether it is two dimensional or three dimensional the vector quantity has a specific direction. Such as a stone is thrown with a velocity in a particular direction.
The path of the stone in three-dimension shows its direction and speed is its magnitude.
Hence, the velocity of stone has two property magnitude mentioned as speed and particular direction. On writing the mathematical expressions for vectors, it is denoted by arrow mark on its top as shown below.