A stone is thrown from the top of a building with an initial velocity of 20.0 m/s straight upward, at an initial height of 50.0 m above the ground. The stone just misses the edge of the roof on the its way down. Determine (a) the time needed for the stone to reach its maximum height. (b) the maximum height. (c) the time needed for the stone to return to the height from which it was thrown and the velocity of the stone at that instant.

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Chapter4: Motion In Two And Three Dimensions
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Linear Motion
Free Fall for Rookie
1= 2.04 s
Ja 20.4 m
t-0, yo -0
• A stone is thrown from the top of a building with an initial
velocity of 20.0 m/s straight upward, at an initial height of
50.0 m above the ground. The stone just misses the edge of
the roof on the its way down. Determine
• (a) the time needed for the stone to reach its maximum
height.
• (b) the maximum height.
• (c) the time needed for the stone to return to the height
from which it was thrown and the velocity of the stone at
that instant.
" - 20.0 m/s
!= 4.08 s
y=0
-20.0 m/s
I- 5.00 s
y=-22.5 m
V=-29.0 m/s
50.0 m
• (d) the time needed for the stone to reach the ground
• (e) the velocity and position of the stone at t= 5.00s
Jan.
1= 5.83
y-50.0 m
P-37.1 m/s
Transcribed Image Text:Linear Motion Free Fall for Rookie 1= 2.04 s Ja 20.4 m t-0, yo -0 • A stone is thrown from the top of a building with an initial velocity of 20.0 m/s straight upward, at an initial height of 50.0 m above the ground. The stone just misses the edge of the roof on the its way down. Determine • (a) the time needed for the stone to reach its maximum height. • (b) the maximum height. • (c) the time needed for the stone to return to the height from which it was thrown and the velocity of the stone at that instant. " - 20.0 m/s != 4.08 s y=0 -20.0 m/s I- 5.00 s y=-22.5 m V=-29.0 m/s 50.0 m • (d) the time needed for the stone to reach the ground • (e) the velocity and position of the stone at t= 5.00s Jan. 1= 5.83 y-50.0 m P-37.1 m/s
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