A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while turning is :

  • [NEET 2023]
  • A

    along south-west

  • B

    along eastward

  • C

    along northward

  • D

    along north-east

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  • [JEE MAIN 2021]

A block of mass $15 \;kg$ is placed on a long trolley. The coefficient of static friction between the block and the trolley is $0.18$. The trolley accelerates from rest with $0.5 \;m s ^{-2}$ for $20 \;s$ and then moves with uniform velocity. Discuss the motion of the block as vlewed by

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  • [KVPY 2010]

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