I guess use a high speed camera
Time it and measure the distance travelled.Chat with our AI personalities
An anemometer is used to measure wind speed. A Pitot Tube is used to infer speed in an aeroplane,. A speedometer in an ordinary car, and a microwave or laser radar in a Police car.
No. RADAR stands for RAdio Direction And Ranging. RADAR uses the reflection of pulses of radio waves from objects to measure the direction and range (distance) of the objects from the RADAR unit. Some RADAR units also measure relative speed by measuring the Doppler frequency shift. Chronometers are simply very precise clocks.
radar
mph is a measure of speed, km is a measure of distance. Speed = Distance/Time. You cannot convert distance into speed without knowledge of the time taken for the journey.
Speed. Kilometre measure distance, and hour is a measure of time. Distance / Time = Speed.