physics
posted by shelly .
runner goes from a standstill to a speed of 7.9 m/s in 14s. what is the acceleration of the runner?

v=u+ft or 7.9=0+fx14
f=7.9/14=0.564m/s^2
Respond to this Question
Similar Questions

physics
A runner, beginning at rest, completed a 50 m run with a final speed of 6 m/s. Assuming constant acceleration. a) What was the average speed of the runner? 
physics
Sprinting near the end of a race, a runner with a mass of 70 kg accelerates from a speed of 6 m/s to a speed of 9 m/s in 2 s. (a) What is the runner's average acceleration during this time? 
Physics
A runner is jogging at a steady 8.4 km/hr. When the runner is 2.6 km from the finish line, a bird begins flying from the runner to the finish line at 42 km/hr (5 times as fast as the runner). When the bird reaches the finish line, … 
Physics
At an instant, Runner 'A' runs at 6m/s with an acceleration of 2m/s^2. Runner 'B' runs at 5m/s with an acceleration of 4m/s^2, and the former (Runner A) is 2 metres ahead of the latter (runner B). How long does it take for Runner B … 
physics
Suppose runner A starts at the 0 degree mark on a circular track (circumference = 400m). And let runner B start at the 180 degree mark. If runner A starts running counter clockwise with acceleration 2m/s^2, and runner B runs clockwise … 
physics
Runner A is running at a constant rate of 2.3 m/s when he passes RUmmer B who is stationary. Runner A continues running at a constant pace, and Runner B begins to run 4 seconds after Runner A just passes him. If Runner B is accelerating … 
Physics
Runner A is running at a constant rate of 2.3 m/s when he passes runner B who is stationary. Runner A continues running at a constant pace, and Runner B begins to run 4 seconds after Runner A just passes him. If Runner B is accelerating … 
science
after 30s, a runner is spriting at 3m/s. But, 10s later, the runner is sprinting at 3.8m/s. What is the runner's acceleration during this time? 
physics
A runner is moving at a constant speed of 8.00 m/s around a circular track. If the distance from the runner to the center of the track is 28.2 m, what is the centripetal acceleration of the runner? 
Physics
An 18yearold runner can complete a 10.0km course with an average speed of 4.39 m/s. A 50yearold runner can cover the same distance with an average speed of 4.27 m/s. How much later (in seconds) should the younger runner start …