3. A box (mass = 100 g) is initially connected to a compressed (x = 80 cm) spring (k = 100N/m) at point A. It was released and started moving along the horizontal surface (μ = 0.2)until it moves up along the inclined surface (μ = 0.3). The box then stops at point D alonethe incline. Consider that e = 30 m and 8 = 30°.(a) What is the velocity of the box at point B?) (Ans: 25.24 m/s)(b) What is the change in kinetic energy from point B to point C? (Ans.: -5.88 J)(c) What is the velocity of the box at point C? (Ans.: 22.79 m/s)(d) What is the length of the incline, f? (Ans. 34.88 m)(e) What is the change in gravitational potential energy from point A to point D?(Ans. 17.10 J)m0DXA BC

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