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Question
Define speed.What is its S.I. unit ?
Define speed.What is its S.I. unit ?
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Solution
Speed is the distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity that is the magnitude of the velocity vector. It doesn't have a direction. A higher speed means an object is moving faster. A lower speed means it is moving slower. If it isn't moving at all, it has zero speed.
The most common way to calculate the constant velocity of an object moving in a straight line is the formula:
S= d / t
where
- S is the rate, or speed (sometimes denoted as v, for velocity, as in this kinematics article)
- d is the distance moved
- t is the time it takes to complete the movement
Speed SI unit is 
Speed is the distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity that is the magnitude of the velocity vector. It doesn't have a direction. A higher speed means an object is moving faster. A lower speed means it is moving slower. If it isn't moving at all, it has zero speed.
The most common way to calculate the constant velocity of an object moving in a straight line is the formula:
S= d / t
where
- S is the rate, or speed (sometimes denoted as v, for velocity, as in this kinematics article)
- d is the distance moved
- t is the time it takes to complete the movement
Speed SI unit is
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