At the end of a race a runner decelerates from a velocity of 7.00 m/s at a rate of 0.300 m/s2.
(a) How far does she travel in the next 14.0 s?
m
(b) What is her final velocity?
m/s
At the end of a race a runner decelerates from a velocity of 7.00 m/s at...
2 At the end of a race a runner decelerates from a velocity of 7.00 m/s at a rate of 0.500 m/s. (a) How far does she travel in the next 16.0 s? (b) What is her final velocity? X m/s Enter a number Additional Materials Reading Submit Answer Save Progress
At the end of a race a runner decelerates from a velocity of 8.70 m/s at a rate of 2.40 m/s2. How far in meters does she travel in the next 4.10 s? (Assume the deceleration of 2.40 m/s2 is constant over the full 4.10 s.) m What is her final velocity in m/s? Evaluate the result. Does it make sense?
At the end of a race, a runner decelerates to a stop from a velocity of 8 m/s at a rate of 1.88 m/s2. How far does she travel in 8.6 s from when she begins decelerating?
A runner moving with an initial velocity of 15.4 m/s slows down at a constant rate of -2.9 m/s2 over a period of 2 seconds. (a) What is her velocity at the end of this time? (b) What distance does she travel during this process?
2. If the total acceleration of a particle moving in a circle is 12 m/s? when at an angle 60 east of the radius, what is the speed of the particle at this moment? 13. When a runner achieved a velocity of 15 m/s, she decelerates at a constant rate of 1.5 m/s2. How long does it takes her to stop and how far does she travel?
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 cyclist sprints at the end of a race to clinch a victory. She has an initial velocity of 11.3 m/s and accelerates at a rate of 0.610 m/s for 7.85 s. (a) What is her final velocity? (Enter the magnitude in m/s.) 16.089 m/s (b) The cyclist continues at this velocity to the finish line. If she is 300 m from the finish line when she starts to accelerate, how much time did she save (in s)? (c) The...
A long-distance runner has an average speed of 2 m/s during a race. How far does the runner travel in 25 min?
Consider a runner moving in the positive direction with an initial velocity of 5.8 m/s slows down at a constant rate of -0.7 m/s2 over a period of 2 seconds. What is her velocity at the end of this time? ______ m/s
Two runners in a 100 m race start from the same place. Runner A starts as soon as the starting gun is fired and runs at a constant speed of 8.00 m/s. Runner B isn’t really paying attention and starts running 2.0 s later and runs at a constant speed of 9.3 m/s. a. Draw a position vs time graph for each runner. b. Who wins the race? c. At the instant the winner crosses the finish line, how far...