Chapter 1, Problem 43A

To determine

Whether the given expression would give the pressure in correct units.

Answer to Problem 43A

No

Explanation of Solution

Given:

  $\frac{\text{0}\text{.55 kg ×2}\text{.1m/s}}{\text{9}{\text{.8 m/s}}^{\text{2}}}$

Formula Used:

Unit of pressure is: $1\text{Pa = }1\frac{\text{kg}}{\text{m}\cdot {\text{s}}^{\text{2}}}$

Calculations:

Solve the given expression (only units):

  $\frac{\text{kg×m/s}}{{\text{m/s}}^{\text{2}}}=\text{kg}\cdot \text{s}$

This is not equivalent to unit of pressure.

Conclusion:

Thus, the given expression would not give the pressure in correct units.