The graph below gives the position x vs

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The graph below gives the position x vs. t for a spot on rim of a rotating wheel 20 10 10 -15 -20 0. 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Time (s 0 From the graph determine the following quantities: (a) The angular speed ω: | 20.9 rad/s (b) The speed of the spot v: 3.14 m/s*) (c) The magnitude of centripetal acceleration of the spot a 65.8 m/s 2 Select (d) The magnitude of angular acceleration α: | (e) The magnitude of tangential acceleration of the spot at: -Select---