In Physics Velocity/speed is defined as “rate at which object is covering a distance”.
Major difference between speed and velocity is
Speed is a scalar quantity as it does not have any direction. For example: Speed of a moving car without it’s direction.
On the other hand, velocity represents the rate of change in postion of a object. For example: If car is travelling from point A to point B and then returning back to point A. Overall change in postion is zero, hence the Velocity of the car is zero.
Velocity is a vector quantity i.e. velcoity always has a direction.
S.I Unit of Velocity/speed is meter/sec.
Meter per second square to kilometer per hour
Ratio between Meter per second square and kilometer per hour is given below
1 m/s = 3.6 Km/hr
What is value of speed in km/hr, when car is moving at speed of 100 m/s?
Speed in km/hr = 3.6 * 100 (m/s) i.e. 360 km/hr
In the similar fashion kilometer per hour can be converted into Meter per second. Ratio between kilometer per hour and Meter per second is :
1 km/hr = 0.277777778 m/s
Square kilometer per hour to mile per hour
Ratio between km/hr and mile/hr is given below
1 km/hr = 0.6213711927193192 mile/hr
What is value of speed in mi/hr, when car is moving at speed of 100 km/hr?
Speed in mi/hr = 0.6213711927193192 * 100 (km/hr) i.e. 62.13711927193192 mi/hr
Conversion Table: Speed Conversion Table