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Moderate

Piano on a Ramp

CLMECH-CRGATN

A $250\space kg$ piano on wheels is on the $10.0^\circ$ ramp of a moving truck. There is $10.0\space N$ of friction in the wheels. What minimum normal force must the ramp be able to supply to avoid collapsing under the piano?

A

$2450\space N$

B

$2410\space N$

C

$1230\space N$

D

$425\space N$