A block of mass 1.3 kg is attached to a horizontal spring that has a force const

Question

A block of mass 1.3 kg is attached to a horizontal spring that has a force constant 900 N/m as shown in the figure below. The spring is compressed 2.0 cm and is then released from rest.

(a) A constant friction force of 4.3 N retards the block's motion from the moment it is released. How much is the spring compressed when the speed of the block is a maximum.
= .478 cm

(b) What is the maximum speed?

A block of mass 1.3 kg is attached to a horizontal spring that has a force constant 900 N/m as shown in the figure below. The spring is compressed 2.0 cm and is then released from rest. (a) A constant friction force of 4.3 N retards the block's motion from the moment it is released. How much is the spring compressed when the speed of the block is a maximum. = .478 cm (b) What is the maximum speed? I can not figure this part (b) out! Please help and explain!!

Explanation / Answer

Initial Energy
E = 1/2 k d

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