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Algebra
Pregunta

A particle moves according to the law of motion \(...

A particle moves according to the law of motion 

\(s = t ^ { 3 } - 7 t ^ { 2 } + 5 t , \quad t \geq 0\)

where \( t \) is measured in seconds and \( s \) in feet. 

a.) Find the velocity at time \( t \) . Answer: 

b.) What is the velocity after \( 3 \) seconds? Answer: 

c.) When is the particle at rest? Enter your answer as a comma separated list. Enter None if the parcicle is never at rest. Answer: 

d.) When is the particle moving in the positive direction? 

When \( 0 \leq t < \) ___and  \(t> \)___

Answer

\(a)3t^2- 14t+ 5\\b)- 10\\c)4.27698 ,0.38968\\d)0.38968,4.27698\)

Solución
View full explanation on CameraMath App.