Answer:
Anybody which is in state of rest ,will be in rest if we don't apply any external force ...
its period should be the amount it takes to cycle from cycle to cycle so it would be 10 and your frequency would have to be calculated by taking 10 and dividing by 2 since that is how many cycles you have done so your frequency is 5
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Mass is measured in kg
Velocity is measured in ms^-1
Hope this is what you were looking for
10/70×360°
=51.4°
hope thus helps