Matt set a record for the men's 100 m freestyle even in swimming. It took him 49.17 s to swim the 50.0 m length of the pool and swim back. Assume that half of Matt's record time was spent traveling the length of the pool. What was his speed?

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Answer 1 · 2018-06-28T21:02:39

#2.03# #m//s#

#49.17s# was half of the record time.

the full record time would therefore be #49.17s * 2#, which is #98.34s#.

the full length of the race in the full record time is #100m# in #49.17s#.

average speed = total distance / total time

total distance / total time #= (100m)/(49.17s)#

#100/49.17 = 2.03 (3s.f.)#

average speed #= 2.03# #m//s# #(3s.f.)#