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Block slowed by friction on a level surface: distance, time or coefficient

This type of question, asked 3 times: 14 Jun 2022, 27 Jul 2022, 31 Jan 2023. All 3 questions below, oldest first.

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  1. Question 1

    14 Jun 2022

    6
    A block of mass 10 kg10\text{ }kg starts sliding on a surface with an initial velocity of 9.8 ms−19.8{\text{ }ms}^{- 1}. The coefficient of friction between the surface and block is 0.5. The distance covered by the block before coming to rest is: [use g=9.8 ms−2g = 9.8{\text{ }ms}^{- 2} ]

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  2. Question 2

    27 Jul 2022

    4
    A bag is gently dropped on a conveyor belt moving at a speed of 2 m/s2\text{ }m/s. The coefficient of friction between the conveyor belt and bag is 0.4 Initially, the bag slips on the belt before it stops due to friction. The distance travelled by the bag on the belt during slipping motion is: [Take g=10 m/s−2g = 10\text{ }m/s^{- 2} ]

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  3. Question 3

    31 Jan 2023

    105
    A body of mass 10 kg10\text{ }kg is moving with an initial speed of 20 m/s20\text{ }m/s. The body stops after 5 s5\text{ }s due to friction between body and the floor. The value of the coefficient of friction is: (Take acceleration due to gravity g=10 ms−2g = 10{\text{ }ms}^{- 2} )

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