Physics, 03.01.2020 21:31 andreamarie2004amg

Two identical blocks, block a and block b, are placed on different horizontal surfaces. block a is initially at rest on a smooth surface, while block b is initially at rest on a rough surface. a constant horizontal force of magnitude f0 is exerted on each block. after the force has been applied for a time δt, the speeds of blocks a and b are va and vb, respectively. which of the following claims indicates the correct relation between va and vb and provides the best justification for the relation? (a) va < vb. the forces between the atoms in a block and the atoms in a surface oppose the motion of the block and are greater on average for block a.(b) va < vb. the forces between the atoms in a block and the atoms in a surface oppose the motion of the block and are greater, on average for block b.(c) va > vb. the forces between the atoms in a block and the atoms in a surface oppose the motion of the block and are greater on average for block a (d) va > vb. the forces between the atoms in a block and the atoms in a surface oppose the motion of the block and are greater on average for block b.

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Two identical blocks, block a and block b, are placed on different horizontal surfaces. block a is i...

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