is applied to the puck (throug uck\'sa stretches the same amount), a (relative t

Question

is applied to the puck (throug uck'sa stretches the same amount), a (relative to the distant stars) 1S (a) I puck's acceleration in outer spk Earth. distaui), and the puck's all stars) is measured. What is the n greater than its acceleration on tnt same as its acceleration on the Ea its acceleration on the Earth. (d) It cceleration on the Earth. (b) It is the ation on the Earth. (c) It is less than trains it. outer space? (a) It is somewhat is the on the IE ( It . (d) It is infinite because ins it. (e) It is very neither friction nor gravity constrains weight and the puck's weight is very sm large because acceleration is invers s weight is very small but not zero. e is pushing horizon x of shirts on is inversely proportional to The mana tally with a force of magnitude 200 N on a b The box is sliding across the horizontal floor ward acceleration. Nothing else touches the box ger of a department store is pua box of sh must be true ab friction acting on t than 200 N. (b) It is less than 200 N. (c) It is equal to ontal floor with a for- uches the box. What e true about the magnitude of the force of kinetic he box (choose one)? (a) It is greater 200 N. (d) None of those statements is necessarily true. Unless otherwise noted, all content on this page is © Cengage Learnin

Explanation / Answer

Here ,

as the kinetic friction oposses motion ,

hence , it acts in backwards direction ,

as the direction of acceleration is forwards.

Using second law of motion ,

F - kinetic friction = ma

Hence ,

kinetic friction is less than F

hence , the correct choice is b) It is less than 200 N

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