What do you mean by work? Give an example of negative work done? What is the work to be done to increase the velocity from 18 km/hr to 19 km/hr if the mass of the care is 2000 kg.
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Answered by
22
Work is said to be done when there is a displacement inn the body. negative work is done for example against friction.. when a body is made to slide over a rough surface.....
Answered by
12
Work is equal to the product of force and displacement
Negative work done - frictional force
S=v^2-u^2/2a
Therefore, s = 6.85 km
S
Negative work done - frictional force
S=v^2-u^2/2a
Therefore, s = 6.85 km
S
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