Aconstant net force of 75 n acts on an object initially at rest through a parallel distance of 0.60 m. a) what is the final kinetic energy of the object? b)if the object has a mass of 0.20kg , what is its final speed?

Answer

given,

constant net force = 75 N

distance = 0.60 m

mass = 0.20 Kg

a) by work energy theorem work done is equal to change in kinetic energy.

initial speed = 0 m/s

b) We know.

  v² = 450

  v = 21.21 m/s

the final speed of the object is equal to v = 21.21 m/s

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