A 20.kg block on a horizontal surface is attached to a light spring (spring constant k = 8.0 × 1

Name: A 20.kg block on a horizontal surface is attached to a light spring (spring constant k = 8.0 × 10^3 N/m). The block is pulled 10. cm to the right from its equilibrium position and released from rest. When the block has moved 2.0 cm toward its equilibrium position, its kinetic energy is 11 J. How much work is done by the frictional force on the block as it moves 2.0 cm?
Uploaded: 2022-01-13T17:01:19-08:00
Duration: 50 s
Channel: Penny Riley
Description: A 20.kg block on a horizontal surface is attached to a light spring (spring constant k = 8.0 × 10^3 N/m). The block is pulled 10. cm to the right from its equilibrium position and released from rest. When the block has moved 2.0 cm toward its equilibrium position, its kinetic energy is 11 J. How much work is done by the frictional force on the block as it moves 2.0 cm?

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Animesh Raj · Accepted Answer

First, we need to calculate the initial potential energy of the block when it is pulled 10 cm to

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