50. A body rests on a rough horizontal plane. A
force is applied to the body directed towards
...
Physics, 27.12.2020 16:30 hailiemanuel3461
50. A body rests on a rough horizontal plane. A
force is applied to the body directed towards
the plane at an angle Q with the vertical. The
body can be moved along the plane
(a) only if Q is more than the angle of friction
(b) only if Q is less than the angle of friction
(c) only if Q is equal than the angle of friction
(d) for all values of Q
(e) none of the above
Answers: 2
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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
Answers: 2
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