(b) A block weighing 20 kg rest on a rough surface with the coefficient of kinetic friction, p=0.3. A force F=(22+s) N, where s is in meter, acts in the direction depicted in Figure Q.4(b) on the block. The spring is originally unstretched and move the block from a position s=s, and a speed v=v/ to a position s=52 and a speed v=v₂. Given that at position s/=0 the block is at rest and s2 = 0.5 m. (i) Using the principle of work and energy, calculate speed v₂ (ii) Calculate the power generated to move the block to sz
(b) A block weighing 20 kg rest on a rough surface with the coefficient of kinetic friction, p=0.3. A force F=(22+s) N, where s is in meter, acts in the direction depicted in Figure Q.4(b) on the block. The spring is originally unstretched and move the block from a position s=s, and a speed v=v/ to a position s=52 and a speed v=v₂. Given that at position s/=0 the block is at rest and s2 = 0.5 m. (i) Using the principle of work and energy, calculate speed v₂ (ii) Calculate the power generated to move the block to sz
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Transcribed Image Text:(b) A block weighing 20 kg rest on a rough surface with the coefficient of kinetic
friction, p=0.3. A force F=(22+ s²) N, where s is in meter, acts in the direction
depicted in Figure Q.4(b) on the block. The spring is originally unstretched and
move the block from a position s=s1 and a speed v=vy to a position s=s; and a
speed v=v2. Given that at position s/=0 the block is at rest and s2=0.5m.
(i) Using the principle of work and energy, calculate speed v2
(ii) Calculate the power generated to move the block to sz
IT
Transcribed Image Text:k=5 N/m
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Figure Q.4(b)
20°
F
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