Final answer:
The true/false question regarding the 10:1 obstacle ratio cannot be accurately answered without additional context. For the reference question about the force to push a box up a ramp, the correct option is 'False' as the mechanical advantage of the ramp allows for a smaller force to be used.
Step-by-step explanation:
The statement 'You must use the 10:1 obstacle ratio for the left/right sides of your PZ/LZ' is missing context and seems to refer to very specific rules, potentially related to aviation, military, or another technical field that were not detailed in the provided information. Without the proper context to relate to the information given (which regards other physics concepts), it's not possible to determine whether this statement is true or false.
As for the question within the reference information regarding the force needed to push a box up a ramp, the answer is False. The force that the boy must apply to the b
ox in order to move it up the ramp is not strictly based on the weight of the box and the dimensions of the ramp. The actual force required can be less than the weight of the box (300 N in this case) because of the mechanical advantage provided by the ramp. This is calculated using the components of the force along the ramp and the angle of inclination, not just the height and length of the ramp. The scenario presented in the problem is an application of basic principles of physics such as force, work, and mechanical advantage.