A pillow is thrown downward with an initial speed of 6 m/s. After 4 seconds, the pillow's velocity is m/s. (g= -9.8m/s2)
Physics · High School · Tue Nov 03 2020
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Given: Initial speed = 6 m/s, t = 4 seconds, g = -9.8m/s^2
In order to find the pillows velocity we derived it from the formula of acceleration
acceleration = change in velocity / change in time
acceleration = final velocity - initial velocity / change in time
final velocity = (acceleration)(time) + initial velocity
final velocity = (-9.8m/s^2)(4 s) +(- 6m/s)
final velocity = -45.2 m/s