The position function of an object moving along a straight line is given by the function...

The position function of an object moving along a straight line is given by the function t3 - 15t2 -48t -10, where s is in metres and t is in seconds and 0≤15≤t . [7A]

a) When is the velocity of the object greater than 21 m/s?

b) When is the speed of the object less than 21 m/s?

c) Illustrate the graphical representation for each of the above."

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milcah answered 2 years ago

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