uDieni4.6-Enhanced- with Feedback previcus 1 of 12 next Problem 4.6- Enhanced -

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uDieni4.6-Enhanced- with Feedback previcus 1 of 12 next Problem 4.6- Enhanced - with Feedback A rocket-powered hockey puck moves on a horizontal frictionless velocity The puck starts at the origin. table. The below shows the graphs of v, and vy, the x and y-components of the puck's v (cm/s) 40 30 20 10 0 v, (cm/s) 40 30 20 10 t (s) 0 TI(S) 012 3 4 5 You may want to review (LD pages 81-85 Part A In which direction is the puck moving at t 3 s? Give your answer as an angle from the x axis Express your answer using two significant figures o above the x-axis Submit My Answers Give Up

Explanation / Answer

The x and y components of the velocity at t = 3 sec is

Vx = 24 cm/s

Vy = 30 cm/s

The direction of puck from the x-axis is

theta = tah^-1(Vx/Vy)

= tan^-1(30 cm/s / 24 cm/s)

= 51.34 degree

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