Lynn is walking up a hill with a horizontal distance of 20m and a vertical distance of 12m. What is her displacement at the top? * A. 23.3 B.26.4 C.34.5 D.16.9

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?