Sunday
December 21, 2014

Homework Help: physics

Posted by Sam on Monday, September 24, 2007 at 8:05pm.

Olympic champion Justin gaitlin set a new world record for 100.0 m sprint at the last lympics by clocking 9.86 s for the race.Calculate
a)His average speed for the race
b)Assuming that he accelerated uniformly for the first 4.86 s after taking off the blocks to reach a maximum speed Vmax with which he continues for the rest of the race, is this speed likely to be same as, less than, or greater than the average speed.Why?
c)calculate the max. speed he reaches at the end of the first stage of his motion
d)Calculate the distance covered during the two stages and the steady acceleration in the first stage

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - Olympic champion Justin gaitlin set a new world record for 100.0 m ...
physics - In 1989, Carl Lewis established a world record when he ran the 100. ...
Physics - In 1989, Carl Lewis established a world record when he ran the 100 ...
Physics Again - In 1954 the English runner Roger Bannister broke the four minute...
physics - the olympic record for the marathon is 2.00 h 9.00 min 210 s. if the ...
Physics - The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing...
physics - The cheetah can reach a top speed of 114km/h (71mi/h). While chasing ...
Physics - The Yukon Quest, an annual dog-sled race between Whitehorse in the ...
math - What would be the answer to85x205=960x3256 85 x 205 = 17425 960 x 3256 = ...
Physics - If 100 m sprinters accelerate from rest for 3.5 s at 2.8 m/s^2, how ...

Search
Members