59. A block resting at the top of a plane inclined at 26° with the horizontal slides down with an acceleration
of 1.96 m/s^2 [down the plane). Calculate the coefficient of
kinetic friction.

μ = 0.265

Explanation:

F = ma

mgsinθ - μmgcosθ = ma

gsinθ - μgcosθ = a

gsinθ - a = μgcosθ

μ = (gsinθ - a) / gcosθ

μ = (9.81sin26 - 1.96) / 9.81cos26

μ = 0.265439...

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

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4. click on the 1st option and scroll down and go at the bottom.

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6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

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8. there is a option " i want to delete my account" and click on that.

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