zero
the magnitude of the skydivers acceleration is zero as he is decelerating by opening his parachute!
66.7 m/s2
80 m/s2 up
To find the acceleration, we first calculate the change in velocity: 4 m/s - 54 m/s = -50 m/s. Next, we use the formula for acceleration: acceleration = change in velocity / time = -50 m/s / 0.75 s = -66.67 m/s^2. The magnitude of the acceleration is 66.67 m/s^2.
He will decelerate (meaning an acceleration in the direction opposite of current velocity) at a rate of (54 m/s - 4 m/s)/.75 seconds = 66.67 m/s2. This is about 6.8 Gs.
To determine the magnitude of acceleration in a given scenario, you can calculate it by dividing the change in velocity by the time it takes for that change to occur. This is represented by the formula: acceleration (final velocity - initial velocity) / time. The resulting value will give you the magnitude of acceleration in the scenario.
Acceleration occurs when there is a change in an object's velocity, either in magnitude or direction. This change can result from an increase or decrease in speed, or a change in the object's path of motion. Acceleration is a vector quantity, meaning it has both magnitude and direction.
66.7 m/s2
velocity = acceleration x time 27 = acceleration x 10 acceleration = 2.7 m/sec/sec
Magnitude of acceleration = (change in speed) / (time for the change) = 2/5 Acceleration = 0.4 meters per second2 north
That would be the magnitude of the average acceleration during that period of time.
The change in velocity is 54 m/s - 5 m/s = 49 m/s. The time is 0.75 seconds. Using the equation a = (vf - vi) / t, the acceleration is (49 m/s) / (0.75 s) = 65.33 m/s^2.