Question: What force would be necessary in Example 2.4 if the mass were 735 lbm? Assume that on the surface of the Earth, g = 9.81

What force would be necessary in Example 2.4 if the mass were 735 lbm?

Assume that on the surface of the Earth, g = 9.81 m/s² = 32.2 ft/s² (i.e., each to three significant figures). Make sure you are reporting the solution to the proper number of significant figures.

Example 2.4

What is the force necessary to accelerate a mass of 65.0 lbm at a rate of 15.0 ft/s²? Since the problem is stated in English units, assume the answer is required in these units. Equation (2.7) is the principle used here:

ft] [lbf x s?1 [Ibm] s2||Ibm x ft ma 65.0 x 15.0 F = = 30.3 Ibf 32.174

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