Question

A racing car travels on a circular track with a radius of 200 m. If the car moves with a constant linear speed of 51.0 m/s, find (a) its angular speed and (b) the magnitude and directions of its acceleration. (a) 0.255 rad/s; (b) 51.0 m/s2 in the direction of tangential velocity (a) 0.255 rad/s; (b) 13.0 m/s2 in the direction of tangential velocity (a) 7.25 rad/s; (b) 13.0 m/s2 in the direction of tangential velocity (a) 0.255 rad/s; (b) 13.0 m/s2 toward the center of the track (a) 0.255 rad/s; (b) 3.92 m/s2 toward the center of the track

Answer 1

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ñ 13 m/s towards the From the given information, (a) V=Jw. Then, R 51 200 0.255 radls. 16) a=v2 a= ut = sp 13.005 200 Center. Hence, the answer is, angular velocity = a.rrs rad's and 43.0m/s towards the center of track Then, answer is option (d)