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A car starts a race from rest on a circular track and has a tangential speed of 43 m/s at the end of the third lap. The track has a radius of 91 m. If it has constant angular acceleration, what is the magnitude of its tangential acceleration?

Help me and please explain in simple terms because I'm very confused.

  • Physics. -

    a(τ) =ε•R =(v²/2•φ) •R =v²•R/2 • 2•π•N = v²•R/4•π•N

  • Physics. -

    what is N

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