Q1 (Ch7/8) (Solve this with concept of energy and force. ) An object of mass m = 865 g moves on horizontal plane with velocity (v = 12.0 m/s) of the object at point A. Horizontal surface (AB) has μ1 = 0.550 of kinetic friction coefficient and inclined plane (BC) has μ2 = 0.350 of kinetic friction coefficient. Object reaches maximum height of h on inclined plane. At point C object velocity is zero. Inclined angle θ = 32∘. The acceleration due to gravity is g. a) Find an algebraic equation for the work done due to friction from A to B (AB = d = 7.0 m) and then find the numerical value? (2 points) b) Find an algebraic equation for the velocity of the object at point B and then find the numerical value (AB = d = 7.0 m)? ( 4 points) c) Find an algebraic equation for height h when the object reaches point C on inclined plane and then find the numerical value? ( 4 points)
