A particle moves according to a law of motion s= f(t), t20, where t is measured in seconds and s in feet. (If an answer does not exist, enter DNE.) f(t)=-9² +24t (a) Find the velocity (in ft/s) at time t. v(t) = ft/s (b) What is the velocity (in ft/s) after 1 second? v(1) = ft/s (c) When is the particle at rest? (Enter your answers as a comma-separated list.) t= (d) When is the particle moving in the positive direction? (Enter your answer using interval notation.)

A particle moves according to a law of motion s= f(t), t20, where t is measured in seconds and s in feet. (If an answer does not exist, enter DNE.) f(t)=-9² +24t (a) Find the velocity (in ft/s) at time t. v(t) = ft/s (b) What is the velocity (in ft/s) after 1 second? v(1) = ft/s (c) When is the particle at rest? (Enter your answers as a comma-separated list.) t= (d) When is the particle moving in the positive direction? (Enter your answer using interval notation.)

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter3: Polynomial Functions

Section3.5: Mathematical Modeling And Variation

Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...

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