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Q. A 15 kg mass starts from rest and slides down an inclined plane 8x10-1 m long in 0.7s. What net force is acting on the mass along the incline?

Q. A small steel ball bearing with a mass of 17g is on a short compressed spring. When aimed vertically and suddenly free, spring sends the bearing to a height of 1.33 m. compute the horizontal distance ball would travel if the same spring were aimed 38 deg from the horizontal.

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