A sprinter explodes out of the starting block with an acceleration of + 2.42 m/s2, which...
A sprinter explodes out of the starting block with an acceleration of + 2.42 m/s2, which she sustains for 1.36 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity at (a)t = 1.36 s and (b) at the end of the race?
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A sprinter explodes out of the starting block with an
acceleration of + 2.42 m/s2, which...
A sprinter explodes out of the starting block with an acceleration of +2.48 m/s2, which she...
A sprinter explodes out of the starting block with an acceleration of +2.48 m/s2, which she sustains for 1.44 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity at (a)t = 1.44 s and (b) at the end of the race?
A sprinter explodes out of the starting block with an acceleration of +2.34 m/s2, which she...
A sprinter explodes out of the starting block with an acceleration of +2.34 m/s2, which she sustains for 1.26 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity at (a)t = 1.26 s and (b) at the end of the race?
1) An 18-year-old runner can complete a 10.0 km course with an average speed of 4.52...
1) An 18-year-old runner can complete a 10.0 km course with an average speed of 4.52 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.07 m/s. How much later (in seconds) should the younger runner start in order to finish the the course at the same time as the older runner? s 2) A sprinter explodes out of the starting block with an acceleration of +3.8 m/s2, which she sustains for 1.4 s. Then,...
A 66.0 kg sprinter starts a race with an acceleration of 1.88 m/s2. If the sprinter...
A 66.0 kg sprinter starts a race with an acceleration of 1.88 m/s2. If the sprinter accelerates at that rate for 28 m, and then maintains that velocity for the remainder of the 100 m dash, what will be his time (in s) for the race?
An 84.0 kg sprinter starts a race with an acceleration of 1.44 m/s2
1. An 84.0 kg sprinter starts a race with an acceleration of 1.44 m/s2. If the sprinter accelerates at that rate for 41 m, and then maintains that velocity for the remainder of the 100 m dash, what will be his time (in s) for the race? 2. (a) If the rocket sled shown in the figure below starts with only one rocket burning, what is the magnitude of its acceleration (in m/s2)? Assume that the mass of the system is 2090...
a sprinter running a 100m dash leaves the starting block and accelerates to a maximum velocity...
a sprinter running a 100m dash leaves the starting block and accelerates to a maximum velocity of 11m/s at 6s into the race. the sprinter maintains this velocity for 2s , and then slows down until crossing the finish line 11s after beginning the race. a) what was the sprinter's average acceleration during the first 6s of the race? b) what was the sprinter's average acceleration from 6 to 8 s into the race?
A 51-kg sprinter starts a race with an acceleration of 3.56 m/s2 . what is the...
A 51-kg sprinter starts a race with an acceleration of 3.56 m/s2 . what is the net external force on him? if The sprinter from the previous problem accelerates at that rate for 20 m, and then maintains that velocity for the remainder of the 100-m dash, what will be his time for the race?
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration...
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
An Olympic class sprinter starts a race with an acceleration of 4.10 m/s^2 what is her...
An Olympic class sprinter starts a race with an acceleration
of 4.10 m/s^2 what is her speed in m/s 2.20 s later
An Olympic-class sprinter starts a race with an acceleration of 4.10 m/s2 (a) What is her speed (in m/s) 2.20 s later? m/s
An 87.0 kg sprinter starts a race with an acceleration of 2.28 m/s^2. If the sprinter...
An 87.0 kg sprinter starts a race with an acceleration of 2.28 m/s^2. If the sprinter accelerates at that rate for 30 m, and then maintains that velocity for the remainder of the 100 m dash, what will be his time (in s) for the race?
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
An Olympic class sprinter starts a race with an acceleration
of 4.10 m/s^2 what is her speed in m/s 2.20 s later
An Olympic-class sprinter starts a race with an acceleration of 4.10 m/s2 (a) What is her speed (in m/s) 2.20 s later? m/s
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