Contact force always acts at A. acute angles to the surface producing it B. right angles to the surface producing it C. obtuse angle to the surface producing it D. parallel to the surface producing it

Contact force always acts at

A. acute angles to the surface producing it

B. right angles to the surface producing it

C. obtuse angle to the surface producing it

D. parallel to the surface producing it
by

1 Answer

Answer :

right angles to the surface producing it


by

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