Questions
A particle is moving on a circular path of radius r with uniform speed v. What is the displacement of the particle after it has described an angle of '?
detailed solution
Correct option is C
According to cosine formulacos 600 = r2+r2-x22r2∴ x = r2r2 cos 600 = 2r2-x2x2 = 2r2-2r2cos 600 = 2r2[1-cos 600] = 2r2[2 sin2 300] = r2∴x = rTalk to our academic expert!
Similar Questions
A particle moves along a horizontal circle with constant speed. If 'a' is its acceleration and 'E' is its kinetic energy
A) a is constant B) E is constant C) a is variable D) E is variable
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