Ask a New Question

Question

A runner’s velocity along a straight track is 3.2 m/s at time 5.0 s and 2.2 m/s at time 13 s. Find the runner’s average acceleration during this time interval.
14 years ago

Answers

Henry
a = (Vf - Vo) / (Tf - To),
a = (2.2 - 3.2) / (13 - 5),
= -1 / 8 = -0.125 m/s^2.

The neg sign means that the runner was actually slowing down or decelerating.
14 years ago

Related Questions

A runner moving at a velocity of 6 m/s increases the velocity in a 2 s time interval to a rate of... A runner wants to run 11.6 km. She knows that her running pace is 8.1 miles per hour. How many minut... Velocity/instantaneous velocity question? In a demonstration a ball falls directly to the ground. W... Hey, So a runner wants to run 10.0 km. She knows that her running pace is 7.5 m per hour. How many... Runner A speed 1km/hour Runner B speed 2km/hour They start of at the same point at the oval.In a... Runner A and Runner B tracked their mileage. Runner A’s average miles per minute are displayed in th... Runner A and runner B tracked their Mileage How do you think the runner continues to make ATP when her oxygen is limited? How do you think the runner continues to make ATP when her oxygen is limited? Runner A and Runner B are running a marathon at different speeds.
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use