An object is dropped from the top of a cliff 660 meters high. Its height above the ground t seconds after it is dropped is 660 4.9t2. Determine its speed 4 seconds afterit is droppedThe speed of the object 4 seconds after it is dropped ism/sec(Type an integer or a decimal. Do not round.)

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Asked Sep 16, 2019
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An object is dropped from the top of a cliff 660 meters high. Its height above the ground t seconds after it is dropped is 660 4.9t2. Determine its speed 4 seconds after
it is dropped
The speed of the object 4 seconds after it is dropped is
m/sec
(Type an integer or a decimal. Do not round.)
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An object is dropped from the top of a cliff 660 meters high. Its height above the ground t seconds after it is dropped is 660 4.9t2. Determine its speed 4 seconds after it is dropped The speed of the object 4 seconds after it is dropped is m/sec (Type an integer or a decimal. Do not round.)

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Expert Answer

Step 1
Step 2

When object is dropped the height (h) o...

h 660-4.9r
h 660-4.9(4)
h 660- 78.4
h 581.6
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h 660-4.9r h 660-4.9(4) h 660- 78.4 h 581.6

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Math

Calculus