Emily I.

asked • 03/22/23

Help, someone explain this

A raindrop is falling to the ground such that the height h is defined as h(t) = 1.4√t / a. t is measured in seconds and a is an unknown constant. What would the expression that represents the instantaneous rate of change in height with respect to time when 9 seconds have passed be? Would be it 2.8a-9 / 12a^2?

Paul M.

tutor
You need to clarify: is the a under the radical or outside of it?
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03/22/23

William W.

Is the function h(t) = 1.4sqrt(t/a) or is it [1.4sqrt(t)]/a?
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03/22/23

Emily I.

It's [1.4sqrt(t)]/a
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03/22/23

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