A Block Is Projected with Speed V Across a Horizontal

question 21

Multiple Choice

A block is projected with speed v across a horizontal surface and slides to a stop due to friction. The same block is then projected with the same speed v up an incline where it slides to a stop due to friction. In which case did the total mechanical energy of the block decrease the least?

• A) This problem cannot be solved since it was not indicated whether the horizontal surface and the incline both had the same coefficient of kinetic friction.
• B) The case on the horizontal surface had the least decrease in total mechanical energy.
• C) The case on the inclined surface had the least decrease in total mechanical energy.
• D) In both cases the decrease in mechanical energy was the same.

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Definitions:

Data Monitor

A Data Monitor is a tool or system used to observe, track, and analyze data traffic or processing activities to ensure proper operation and performance.

Radix

The base of a number system; for example, the radix of the decimal system is 10, and the binary system is 2.

Force Instructions

In PLC programming, commands that temporarily overwrite the normal operation of inputs or outputs for testing or debugging purposes.

Data Table Bits

Refers to the smallest unit of information in a table structured for data storage, representing a binary value of 0 or 1.