5) A force É = 12 Ni - 10 N j acts on an object. How much work does this force do as the object moves from the origin to the point 7 = 13 m î+ 11 m}? 62 J O 37J O 46J 266J 127J

Leni Marcos apply a constant force F= - 68N i + 36N j to a 380 kg car as the car travels 48.0 m in a direction that is 240 degrees counter clockwise from the +x-axis. How much work does the force she apply on the car? А 134.4J 1632J 1497.6J D) 3129.6J

1. Boxing gloves are padded to lessen the force of a blow. The glove and face compress 7.5000 cm during a blow in which the 7.0000-kg arm and glove are brought to rest from an initial speed of 10.0000 m/s. ▬▬ - Think & Prepare 1. Make note of what's given and what's unknown. Relate known quantities to symbols. 2. Draw a labeled sketch if possible. 3. Identify the physics principle and approach. Write down relevant equations symbolically. Simplify if possible. 4. Insert numerical quantities to solve for unknowns. 5. Does the answer make sense? % (a) Calculate the change in kinetic energy of the glove and arm. AKE = (b) Where does this energy go? O Search 5 O into doing work against the force exerted by the face against the glove O into doing work against gravity O into the potential energy of the face O into the potential energy of the glove and arm T 4- 6 Y 17 + & J 7 90 8 * 8 U I 이 144 ( 9 110 DII O E DDI I P 2 { 4 ( ← backs

% Consider a situation where you carry a 20-N box up a flight of stairs, raising its elevation by 5 m. 5 The work you do is 4 J. 15 True O False O Bi 89 6 X 7 18 ASUS 8 A 19 9 f10 fll f12 pau bre