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Posted by on Monday, July 26, 2010 at 3:28pm.

Brad uses a wheelchair to get in his house.which modification would make it easier for Brad to get in his house?

a)increase the length of the ramp

b)increase the friction between the wheels and the ramp surface

  • Physic - , Monday, July 26, 2010 at 4:37pm

    Is the ramp made of ice? What do you think? Why?

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