Two blocks, C and D, slide with ordinary kinetic friction on inclined planes of the same height (assume the blocks are small compared to the incline, so the centers of mass of the two blocks begin at exactly the same height). The two blocks have identical coefficients of friction with the planes and tho fficionte of friction small onough the both blocks accelorato downward

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Figure 8
Two blocks, C and D, slide with ordinary kinetic friction on inclined planes of the same height
(assume the blocks are small compared to the incline, so the centers of mass of the two blocks
begin at exactly the same height). The two blocks have identical coefficients of friction with the
planes, and the coefficients of friction are small enough the both blocks accelerate downward
(they speed up) as they move downward.
Block C is on a shorter incline that is inclined at a steeper angle than the incline for Block D (
Oc > 0p in the diagram above). The two blocks are released from rest at the same time.
Block C reaches the bottom of the ramp after time to and when it reaches the bottom it has a
speed of vCf. Block D reaches the bottom of the ramp after time tp and arrives at the bottom
of the ramp with a speed of vpf. Ignoring air resistance but keeping in mind that there is kinetic
friction between the blocks and the planes, which of the following correctly describes the
relationship between these quantities?
O tc < tp, and vcf < VDf
tc < tp, and VCf > VDf
O tc > tp, and vcf = VDf
O tc > tp, and vcf < VDf
O tc < tp, and vcf = VDf
O tc > tp, and vcf > VDf
Transcribed Image Text:Figure 8 Two blocks, C and D, slide with ordinary kinetic friction on inclined planes of the same height (assume the blocks are small compared to the incline, so the centers of mass of the two blocks begin at exactly the same height). The two blocks have identical coefficients of friction with the planes, and the coefficients of friction are small enough the both blocks accelerate downward (they speed up) as they move downward. Block C is on a shorter incline that is inclined at a steeper angle than the incline for Block D ( Oc > 0p in the diagram above). The two blocks are released from rest at the same time. Block C reaches the bottom of the ramp after time to and when it reaches the bottom it has a speed of vCf. Block D reaches the bottom of the ramp after time tp and arrives at the bottom of the ramp with a speed of vpf. Ignoring air resistance but keeping in mind that there is kinetic friction between the blocks and the planes, which of the following correctly describes the relationship between these quantities? O tc < tp, and vcf < VDf tc < tp, and VCf > VDf O tc > tp, and vcf = VDf O tc > tp, and vcf < VDf O tc < tp, and vcf = VDf O tc > tp, and vcf > VDf
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