A wooden block with mass 1.50 kg is placed against a compressed spring at the bottom of an incline of slope 30.0 degrees. When the spring is released,

Jaden Easton

Jaden Easton

Answered question

2021-02-24

A wooden block with mass 1.50 kg is placed against a compressed spring at the bottom of an incline of slope 30.0 degrees. When the spring is released, it projects the blockup the incline. At point B, a distance of 6.00 m up the incline from A, the block is moving up te incline at 7.00 m/s andit is no longer in contact with the spring. The coeffiicient of kinetic friction between the block and incline is k =0.50. The mass of the spring is negligible. Find the amount of potential energy that wasinitially stored in the spring.

Answer & Explanation

Derrick

Derrick

Skilled2021-02-25Added 94 answers

image
from the diagram the amount of work done is
mgsin30=1.5×9.8×12=7.35 J
from the diagram the amount of work done is 12mv2
to calculate the potential energy of the spring these two energies are added.

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