Tue January 10, 2012 By:
As per my knowledge, while walking on road, friction keeps us frommoving backwards and ultimately stay at the same place.

how does friction act during movements in a desert

Expert Reply
Wed January 11, 2012
Sand particles are small in size. When we stand on sand, there is less frictional force between the feet and the sand particles. The sand particles roll, as our feet press against them while walking. This rolling makes our feet slip as we walk on the sand. That is why it is difficult to walk on sand, the friction is less here.
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