m k <-X-> 4 A shown in the picture, a 315 g mass slides down a curved incline then collides with a spring. The spring constant of the spring is 179 N/m. Assume that friction is negligble in these problems. (A) If the mass starts from rest at a height of 1.73 cm, what is the final compression of the spring when the mass comes to rest? Assume the spring is initially uncompressed. 0.0244 m (B) If the mass initially compresses the spring 1.27 cm, what is the maximum height the mass rises to on the incline? Assume the mass is released from rest. 0.367 m (C) If the mass is released from rest at a height of 1.73 cm, what is the compression of the spring when the mass has a speed of 37.3 cm/s? 0.029 m

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.