physics, Quickly please solve queeeeestion 12 Q7) The coefficient of kinetic friction between the ground and a sled is 0.25. If the sled's mass is 8.0kg. how much force is required to move the sled at a constant velocity?a) 2.0 Nb) 20 NQ8) Constant force F-(i+4k) N acts on 2 kg object moved it displacement r-(2i+3j-4k) mWork done by the force on object is:a) 11 Jb)-11 Jc)-14 Jd) 14 Je) reroQ9) Person of 80 kg lifting himself by thread (de) 8m upward in 10 second. the average powerIn watt is:a) 640b) 64c) 6400d) 6.4 e) noneQ10) An object with initial speed of 6 m/s slides a distance of 9 m before coming to rest on a roughhorizontal surface. The kinetic coefficient friction is:a) 0.12b) 0.2c) 123.2d) 0.73e) 0.49Q11) A boy of mass 40 Kg skies down a 20 m high hill if the friction force is not negligible and the speedin the bottom is 10m/sec, how much work is done by frictional force:a)-102203b)-7300Jc)-8760Jc) 320 Nd) 3.5Q12) Amass of 35 kg is acted on by two forces: force F, is 30 N to cast and force F; is 24 N tothe magnitude of the acceleration in (m/s) is:a) 1.1b) 4.1c) 2.7Q13) If a 3.0 mm, b-4.0 mm, 21-60 nC, 22-80 nC,and q-30 nC in the figure, the magnitude of the total electricforce on q?a) 1.ANb) INc) 1.7 Nd) 2 Ne) 0.5 Nb) 4x 10"d)-5840e) 2 x 10"e) 0,820-d) 32 NQ14) An object is determined to have a negative charge of 48 nC. The object has an excess ofelectrons equal:a) 3 × 10¹¹d) 5 x 10¹north.

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Description: physics, Quickly please solve queeeeestion 12 Q7) The coefficient of kinetic friction between the ground and a sled is 0.25. If the sled's mass is 8.0kg. how much force is required to move the sled at a constant velocity?a) 2.0 Nb) 20 NQ8) Constant f

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Answered: Q12) Amass of 35 kg is acted on by two…

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Q12) Amass of 35 kg is acted on by two forces: force F, is 30 N to cast and force F; is 24 N to the magnitude of the acceleration in (m/s²) is: a) 1.1 b) 4.1 c) 2.7 d) 3.5 e) 0,8 north.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: Newton's Laws Of Motion

Section: Chapter Questions

Problem 27P: A horse is harnessed to a sled having a mass of 236 kg, including supplies. The horse must exert a...

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A magician pulls a tablecloth from under a 200-g mug located 30.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.100 N on the mug and is pulled with a constant acceleration of 3.00 m/s2. How far does the mug move relative to the horizontal tabletop before the cloth is completely out from under it? Note that the cloth must move more than 30 cm relative to the tabletop during the process.
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