Final answer:
The loading described in the question is triangular axial distributed loading, which varies linearly along the length of the bar. Hence, the correct answer is c) Triangular loading.
Step-by-step explanation:
The nature of the loading being described is triangular axial distributed loading, which is a type of structural loading. This means that the load applied to the bar varies along its length, starting from zero at one end and increasing linearly to a maximum value at the other end, creating a triangular shape when graphed.
SUMUP of Final Answer
- The loading is triangular since it is described as a triangular axial distributed loading.
- The correct answer to the multiple-choice question is c) Triangular loading.
- This form of loading is common in structural engineering problems.