MCQOPTIONS
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MCQOPTIONS
| 1. |
If only conservative forces are working in the system and we apply some external force |
| A. | \[{{W}_{ext}}=\Delta U\](always) |
| B. | \[{{W}_{\text{conservative}}}=-\Delta U\](always) |
| C. | \[{{W}_{ext}}=\Delta U+\Delta KE\] (always) |
| D. | \[{{W}_{\operatorname{co}nservative}}=-\Delta KE\] |
| Answer» C. \[{{W}_{ext}}=\Delta U+\Delta KE\] (always) | |