Question
Asked Sep 15, 2019
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What is the maximun height attained by an object thrown straight up with an initial velocity of 80 m/s

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Expert Answer

Step 1

The initial velocity is 80 m/s and at maximum height the velocity will be zero.

Write the kinematic expression for final velocity.

vis the final velocity
u is the initialvelocity
u2as
+
a is the accleration
s is the distance
a-g
|v=0
0=-2gs
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vis the final velocity u is the initialvelocity u2as + a is the accleration s is the distance a-g |v=0 0=-2gs

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Step 2

Rearrange equation (I) to obtain an expression fo...

g 9.8m/s
_u =80m/s
o2-u2
S =
-2g
(80m/s
2x9.8m/s
=326.5m
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g 9.8m/s _u =80m/s o2-u2 S = -2g (80m/s 2x9.8m/s =326.5m

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