Question

Sir Countinuing from my previous ques which i have asked

I want to know when nothing is mention about tangential acceleration n centripital acceleration i hv asked to find force then what to do

Answer 1

●In uniform circular motion the acceleration is radial (normal) of modulus v^2/r. The tangential component is zero.

->Tangential acceleration is acceleration parallel to the circular path. Since the velocity (this velocity is also in tangential direction) of the motorist is constant, there is no tangential acceleration.

Normal acceleration is acceleration perpendicular to the path; here it is the centripetal acceleration.

●If the speed is constant there is only normal acceleration (from the motorist to the center of the circunference).

position vector goes from the center of the circle, so −ω2rr^−ω2rr^ is an acceleration that goes to the center of the circle: we call it normal or radial acceleration an=ω2r. The other acceleration goes in the speed vector, and the speed is alway tangential to the circle in circular motion. Then we call ir tangential acceleration at=αr.

a^n=v^2/r,at=dv/dt.

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