Bennett Mechanical Comprehension Practice Test 2025 – The Complete All-in-One Guide to Exam Success!

To determine the pressure exerted on the ground by the object, we use the formula for pressure, which is the force divided by the area over which the force is applied. Pressure is calculated as follows:

\[ \text{Pressure} = \frac{\text{Force}}{\text{Area}} \]

In this case, the force is the weight of the object, which is given as 400 N. However, the question does not provide the area of the conic platform that is in contact with the ground. Without knowing the area, it is impossible to compute a specific pressure value.

The options presented suggest possible values for pressure, but only one choice indicates that the answer may not be among the provided numerical values, which reflects the inability to compute pressure without the area. This leads to the conclusion that the correct option is that none of the above values can be determined without additional information regarding the area.

Thus, the reasoning behind the selected answer is based on the principle that without the area of the conic platform, we cannot accurately assess the pressure exerted on the ground.