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An object whose mass is 0.5kg is released from rest at a height of 12m. (a) What is its maximum potential energy and its maximum kinetic energy? (b) Find the speed when the object is 5m above the ground; when it hits the ground.

Sagot :

Explanation:

what is the important friction between rocks on the ground it above switching of air to be it's all the ground together stories energy of earth d it present too much seeking