A construction truck collides with the back of a subcompact car. Which vehicle has the larger change in momentum during the coll
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Answer:
the distance of the top of the window below the windowsill from which the flowerpot fell is 0.31 m
Explanation:
given information:
time, t = 0.420 s
height, h = 1.9 m
the the vertical motion equation:
h = t +
where
h = height (m)
= initial velocity (m/s)
t = time (s)
g = gravitational force (9.8 )
first we calculate the velocity of the flowers pot when it reaches top window
h = t +
1.9 = (0.42) + (
)
= (1.9 - (
))/0.42
= 2.47 m/s
now we can find the distance of the windowsil
+ 2gh
v = 0, thus
2gh = -
h = -/2g
= / (2 x 9.8)
= 0.31 m