Question: Help!!! Please l. A 19 kg object sits on a horizontal surface. If the u between the object and the surface is 0.145, how much

Help!!! Please

l. A 19 kg object sits on a horizontal surface. If the u between the object and the surface is 0.145, how much force is needed to give the object an acceleration of 4.8 111/52? 2. In the picture below, the m; between the object and the surface is 0.12. If a force of 150 N is applied, what [is the object's acceleration? l 3. An 30 kg person skis down a mountain with an acceleration of 1.4 role\". If the mountain has an angle of 3 1, calculate the following: A) The net force that accelerates the skier B) The force of friction C) The coefcient of friction (I4)

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