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Friction | Exercise

Question 55

A marble is allowed to roll down an inclined plane from a fixed height. At the foot of the inclined plane, it moves on a horizontal surface (a) covered with silk cloth (b) covered with a layer of sand and (c) covered with a glass sheet. On which surface will the marble move the shortest distance. Give a reason for your answer.

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  • Solution

  • Transcript

marble move the shortest distance on the floor covered with sand as it offers maximum friction against its motion.

"hi kids welcome to lido q a video i am vinit your lido tutor glad to bring you this question on your screen a marble is allowed to roll down an inclined plane from a fixed height at the foot of the inclined plane it moves on a horizontal surface covered with silk cloth covered with a layer of sand and covered with a glass on which surface will the marble move the shortest distance give a reason for your answer the marble will move the shortest distance when covered with a layer of sand because sand produces friction which opposes the motion of the marble isn't that easy guys if you still have a doubt please leave a comment below do like the video and subscribe to our channel i'll see you in our next video until then bye kids keep learning keep flourishing "

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Our top 5% students will be awarded a special scholarship to Lido.

subject-cta

Question 55

A marble is allowed to roll down an inclined plane from a fixed height. At the foot of the inclined plane, it moves on a horizontal surface (a) covered with silk cloth (b) covered with a layer of sand and (c) covered with a glass sheet. On which surface will the marble move the shortest distance. Give a reason for your answer.

  • Solution

  • Transcript

marble move the shortest distance on the floor covered with sand as it offers maximum friction against its motion.

"hi kids welcome to lido q a video i am vinit your lido tutor glad to bring you this question on your screen a marble is allowed to roll down an inclined plane from a fixed height at the foot of the inclined plane it moves on a horizontal surface covered with silk cloth covered with a layer of sand and covered with a glass on which surface will the marble move the shortest distance give a reason for your answer the marble will move the shortest distance when covered with a layer of sand because sand produces friction which opposes the motion of the marble isn't that easy guys if you still have a doubt please leave a comment below do like the video and subscribe to our channel i'll see you in our next video until then bye kids keep learning keep flourishing "

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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