Vectors: A vector Ä has magnitude of 29 units and points in the positivo y direction.
When vector B is added to Ä, the resultant vector A + B points in the
negative y-direction with a magnitude of 14 units. Find the magnitude and
direction of vector B
I
magnitude = 43 units, and direction = negative y direction
magnitude = 43 units, and direction = positive y direction
magnitude = 43 units, and direction = negative x direction
O magnitude = 43 units, and direction = positive x direction
magnitude = 15 units, and direction = negative y direction
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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