1.a runner accelerates from a velocity of miles 1 hour east until reaching a velocity of 10 miles 1 hour east in 20 seconds.what is the runner's acceleration in m\s*squared
Initial Velocity = 1 mile / hour = 0.447 meters / second
Final Velocity = 10 miles / hour = 4.47 meters / second
Time = 20 seconds
Acceleration = (Final Velocity - Initial Velocity) / Time
= (10 meters / second - 1 meter / second) / 20 seconds
= 9 meters / second / 20 seconds
= 0.45 meters / second^2
Answer: The runner's acceleration is 0.45 m/s^2 in the direction of east.
Whoops, I plugged in the wrong numbers.
Initial Velocity = 1 mile / hour = 0.447 meters / second
Final Velocity = 10 miles / hour = 4.47 meters / second
Time = 20 seconds
Acceleration = (Final Velocity - Initial Velocity) / Time
= (4.47 meters / second - 0.447 meter / second) / 20 seconds
= 4.023 meters / second / 20 seconds
= 0.20115 meters / second^2
Answer: The runner's acceleration is 0.20115 m/s^2 in the direction of east.
