A moving platform moves with a speed of 80 km/hr. What will be the speed of a boy who is running on it with a speed of 20 km/hr opposite to the motion of the moving track measured by a speed sensor placed on stationary ground?

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Sensors and Transducers topics include: Transducers types, characteristic parameters, static and dynamic characteristics. This section also covers questions on sensors like displacement sensor, position sensor, proximity sensor, motion sensor, velocity, force, acceralation, torque, fluid pressure and liquid flow sensors. Sensors and transducers are both electronic devices that measure or detect physical processes and phenomena.  Here are some differences between sensors and transducers: Sensors: Detect and respond to a specific input, such as light, temperature, pressure, or motion.... Show more

A moving platform moves with a speed of 80 km/hr. What will be the speed of a boy who is running on it with a speed of 20 km/hr opposite to the motion of the moving track measured by a speed sensor placed on stationary ground?