Final answer:
The mass of the ostrich, based on a momentum of 2,187 kg·m/s and a velocity of 16.2 m/s, is calculated to be 134.938 kg. However, this does not exactly match any of the provided choices, possibly indicating a miscalculation or typo.
Step-by-step explanation:
To calculate the mass of the ostrich based on its momentum and velocity, we use the formula p = mv where p is momentum, m is mass, and v is velocity. Substituting the given values of momentum p = 2,187 kg·m/s and velocity v = 16.2 m/s, we rearrange the formula to solve for mass (m):
m = p / v = 2187 kg·m/s / 16.2 m/s
After performing the division, we find that mass equals 134.938 kg. Rounding to the nearest thousandth as suggested by the answer choices, we get 134.938 kg, which is not an exact match to any of the options provided in the question. Therefore, there might be a miscalculation or typo in either the question or the answer choices. The closest value to our calculation is 135 kg, but this is assuming there was a slight rounding difference.