A barometer is kept in an elevator accelerating upwards at `4.9 m//s^(2)`. If the barometer reads 77 cm of Hg, what will be the air pressure in the elevator?

Explanation

To solve the problem of finding the air pressure in an elevator that is accelerating upwards at \(4.9 \, \text{m/s}^2\) with a barometer reading of \(77 \, \text{cm}\) of Hg, we can follow these steps:

### Step 1: Understand the effective acceleration
When the elevator accelerates upwards, the effective acceleration due to gravity increases. The effective acceleration \(g'\) can be calculated as:
\[ g' = g + a \]
where \(g\) is the acceleration due to gravity (\(9.8 \, \text{m/s}^2\)) and \(a\) is the upward acceleration of the elevator (\(4.9 \, \text{m/s}^2\)).
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