Could you please answer these question 8- ++++++ 11- ++++++ 12- ++++++ 15- 16 Th

Question

Could you please answer these question

8-

++++++

11-

++++++

12-

++++++

15-

16

Thank you

What is the angular speed of the ball swung at the end of a 3 m long rope at a speed of 5 m/s? 1-66 rad/s 0.6 rad/s 0.25 rad/s 0 4.5 rad/s 6.34 rad/s In the image the origin and the reference line are indicated. Determine which of the figures at the bottom best indicates the direction of the r and theta unit vectors for point P shown in blue on the diagram. What is the direction of the net acceleration at t=0? (Use the angle shown in the diagram) 85.4 degree 4.56 degree 12.53 degree 0.8 degree What is the direction of the radial acceleration at t=0? (the "hat" is to indicate that these are supposed to be the unit vectors, elearning does not allow the proper format to display the unit vector symbol) What is the magnitude of the tangential acceleration at t=0?

Explanation / Answer

8) a) 1.66 rad/s

w = v/r = 5/3 = 1.66 rad/s

11) B

12) A

15) A

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