Yesua takes part in a 400-m dash where he must run around the end of a track that has a circular arc with a radius of curvature of 60.0 m. Yesua starts the race at a constant speed. (a) If he completes the 400-m dash in 47.3 s and maintains constant speed for the entire race, what is his centripetal acceleration as he runs the curved portion of the track? (b) If his acceleration as he runs around the circular end of the track is given by 2.18 m/s2, how long (in seconds) will it take him to complete the 400-m dash? (c) Yesua partakes in another race where the track is circular with a circumference of 250 m, find the time needed for him to make one revolution given that he accelerates at 1.89 m/s2

Yesua takes part in a 400-m dash where he must run around the end of a track that has a circular arc with a radius of curvature of 60.0 m. Yesua starts the race at a constant speed. (a) If he completes the 400-m dash in 47.3 s and maintains constant speed for the entire race, what is his centripetal acceleration as he runs the curved portion of the track? (b) If his acceleration as he runs around the circular end of the track is given by 2.18 m/s2, how long (in seconds) will it take him to complete the 400-m dash? (c) Yesua partakes in another race where the track is circular with a circumference of 250 m, find the time needed for him to make one revolution given that he accelerates at 1.89 m/s2