Please provide correct answer with full explanation. Question 2 The 2 kg block s

Question

Please provide correct answer with full explanation.

Question 2 The 2 kg block slides in the smooth horizontal track. It is released from rest when the block is drawn back at s = 2 m at A. The spring stiffness k = 2500 N/m with an unstretched length of 0.5 m. Which of the following statements is true? (2 Marks) =2500N/m 0.6 m (i) Conservation of energy is applicable for the motion of the block from A to B (ii) The work done, during motion from A to B, by the gravitational force and normal force exerted on the block is zero The change of the spring elastic energy from A to B is calculated from where so is the spring's unstretched length The change of spring elastic energy from A to B is calculated from ks,-s),where s, and sg are the spring lengths at A and B, respectively. (iii So)--(s,-s B

Explanation / Answer

As the block is released, it will move from point A to B. We can use the conservation of energy to descibe this motion as the total energt is conserved when block moves from s = 2 to s = 0.

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