Solve the Problem $t = \sqrt { \frac { \mathrm { h } } { 4.9 } }$

question 290

Multiple Choice

Solve the problem.
-When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation $t = \sqrt { \frac { \mathrm { h } } { 4.9 } }$ , where $t$ is measured in seconds. Solve the equation for $h$ . Use the result to determine the height from which an object was dropped if it hits the ground after falling for 5 seconds.

• A) \(h = 24.01 \mathrm { t } ^ { 2 } ; 600.3 \mathrm {~m}\)
• B) \(\mathrm { h } = 24.01 \mathrm { t } ; 120.1 \mathrm {~m}\)
• C) \(h = 4.9 t ^ { 2 } ; 122.5 \mathrm {~m}\)
• D) \(\mathrm { h } = 4.9 \mathrm { t } ; 24.5 \mathrm {~m}\)

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