Consider the above graph of the horizontal velocity of a UFO over 30 s. The velocity peaks at 72.5 m/s after 14.5 s. Over the next 1.0 s, its velocity drops to -72.5 m/s. It then continues on with the same acceleration that it had before it changed direction. What is the UFO's net displacement after these 30 s of movement? A. 560 m
B. 0.0 m
C. 1.1 km
D. 1.5 km

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Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal

3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0