Please solve thisThank you

An object with a mass of m = 2.25 kg is traveling with an initial velocity of 3,- = (5.00? 1.403) m/s. (a) Determine its initial kinetic energy. (Give your answer to at least one decimal place.) _x Knowing the initial velocity, how can you use the dot product to obtain the initial speed and then the initial kinetic energy? J (1:) Determine the amount of work that must be done on the object in order to change its velocity to :f = (8.00? + 7.093) m/s. 122.4 X How can you determine the work done on the object from the initial and final kinetic energy? J