Question

a stone is thrown down off a bridge with a velocity of 5.6m/s. What is its velocity after 3 seconds have passed?

Answer 1

Step-by-step explanation:

so every second of free fall, an objects speed increases 9.8 m/s, so 5.6 + 9.8 + 9.8 + 9.8 = 35 m/s

Answer 2

V=35m/s

Step-by-step explanation:

Explanation:Ball is going down with velocity 5.6 m/s hence u=-5.6

a=-g=-9.8(acceleration is in downward

direction)

t=3 second

V=u+at

V=-5.6-9.8(3)

V=-5.6 -29.4

V=35m/s