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March 29, 2017

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part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2.

part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of 1 m/s^2. Find the magnitude of acceleration under these new conditions. Answer in units of m/s^2.

Part 3 of 3: Find the direction of acceleration relative to the direction of motion under these conditions. Answer between -180 degrees and 180 degrees. Answer in unit of degrees.

  • Physics - ,

    (a) Centripetal (or normal)
    acceleration is
    a(c)= m•v²/R=…
    (b) Tangential acceleration
    a(τ)= 1 m/s²
    a=sqrt{a(c)² +a(τ)²}=...
    (c)tanα= a(c)/a(τ)= ..

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