A ball is dropped from the top of a building that is 15 m high. The position of the ball after t seconds is given by the equation s(t) = - 4.9t +15. Find the instantaneous acceleration of the ball after t seconds. A -4.9; m/ s? B -9.8; m/s? -9.8t; m/s? D -4.9t; m/s?

A ball is dropped from the top of a building that is 15 m high. The position of the ball after t seconds is given by the equation s(t) = - 4.9t +15. Find the instantaneous acceleration of the ball after t seconds. A -4.9; m/ s? B -9.8; m/s? -9.8t; m/s? D -4.9t; m/s?

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter8: Rational Expressions And Equations

Section8.9: Use Direct And Inverse Variation

Problem 8.177TI: The distance an object falls is directly proportional to the square of the time it falls. A ball...

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Question

A ball is dropped from the top of a building that is 15 m high. The position of the ball after t seconds is given by the equation
s(t) = - 4.9t+15 Find the instantaneous acceleration of the ball after t seconds.
A
-4.9; m/s?
-9.8; m/s?
-9.8t; m/s²
D
-4.9t; m/s?

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