You throw a $24\mathrm{.}0$ NN rock into the air from ground level and observe that, when it is $15\mathrm{.}0$ mm high, it is traveling upward at $20\mathrm{.}0$ m$/$sm$/$s$.$

Part A

Use the work$-$energy principle to find the rock's speed just as it left the ground.

Express your answer in meters per second.

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

vgroundvground $=$

nothing

m$/$sm$/$s

SubmitRequest$$Answer

Part B

Use the work$-$energy principle to find the maximum height the rock will reach.

Express your answer in meters.

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

hmaxhmax $=$

nothing

mm