Abicyclist was moving at a rate of 8 m/s, and then sped up to 10 m/s. if the cyclist has a mass of 120 kg, how much work was needed to increase his velocity? (hint: use the work-kinetic energy theorem.)

Work = 2160 J

Explanation:

As per work energy theorem we know that work done is equal to the change in the kinetic energy of the cyclist.

As the cyclist is initially moving at speed 8 m/s and after some time his speed changes to 10 m/s

So here we can say that

final kinetic energy - initial kinetic energy = work done

now by plug in all values

so work done by cyclist will be 2160 J

talk back to him about the sport and show him your expertise or leave the room

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the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia