A spring is stretched $190$ mmmm by a $15$ kgkg block.

Part A

If the block is displaced $80$ mmmm downward from its equilibrium position and given a downward velocity of $0\mathrm{.}70$ m$/$sm$/$s $,$ determine the equation which describes the motion. Assume that positive displacement is downward.

y$=9\mathrm{.}74102$sin$7\mathrm{.}19$t$0\mathrm{.}190$cos$7\mathrm{.}19$ty$=9\mathrm{.}74102$sin$7\mathrm{.}19$t$0\mathrm{.}190$cos$7\mathrm{.}19$t y$=9\mathrm{.}74102$cos$7\mathrm{.}19$t$8\mathrm{.}00102$sin$7\mathrm{.}19$ty$=9\mathrm{.}74102$cos$7\mathrm{.}19$t$8\mathrm{.}00102$sin$7\mathrm{.}19$t y$=9\mathrm{.}74102$sin$7\mathrm{.}19$t$+8\mathrm{.}00102$cos$7\mathrm{.}19$ty$=9\mathrm{.}74102$sin$7\mathrm{.}19$t$+8\mathrm{.}00102$cos$7\mathrm{.}19$t y$=9\mathrm{.}74102$sin$7\mathrm{.}19$t$+8\mathrm{.}00102$cos$7\mathrm{.}19$ty$=9\mathrm{.}74102$sin$7\mathrm{.}19$t$+8\mathrm{.}00102$cos$7\mathrm{.}19$t

SubmitRequest$$Answer

Part B

What is the phase angle?

Express your answer with the appropriate units.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

$=$

nothingnothing