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A block of mass 1.5 kg is attached to a horizontal spring that has a force constant 1200 N/m as shown in the figure below. The spring is compressed 2.0 cm and is then released from rest. b (a) A constant friction force of 4.7 N retards the block's motion from the moment it is released. Using an energy approach, find the position x of the block at which its speed is a maximum. cm (b) Explore the effect of an increased friction force of 15.0 N. At what position of the block does its maximum speed occur in this situation? cm

A block of mass 1.5 kg is attached to a horizontal spring that has a force constant 1200 N/m as shown in the figure below. The spring is compressed 2.0 cm and is then released from rest. b (a) A constant friction force of 4.7 N retards the block's motion from the moment it is released. Using an energy approach, find the position x of the block at which its speed is a maximum. cm (b) Explore the effect of an increased friction force of 15.0 N. At what position of the block does its maximum speed occur in this situation? cm

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A block of mass 1.5 k g is attached to a horizontal spring that has a force constant 1200 N / m as shown in the figure below. The spring is compressed 2.0 c m and is then released from rest. b (a) A constant friction force of 4.7 N retards the block's motion from the moment it is released. Using an energy approach, find the position x of the block at which its speed is a maximum. ◻ c m (b) Explore the effect of an increased friction force of 15.0 N . At what position of the block does its maximum speed occur in this situation? ◻ c m

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