{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Pre-Calc Homework Solutions 85

# Pre-Calc Homework Solutions 85 - Section 3.4(c The speed...

This preview shows page 1. Sign up to view the full content.

(c) The speed graph is obtained by reflecting the negative portion of the velocity graph, 2 , t , 7, about the x -axis. (d) For 0 # t , 1: a 5 } 3 1 2 2 0 0 } 5 3 m/sec 2 For 1 , t , 3: a 5 } 2 3 3 2 2 1 3 }52 3 m/sec 2 For 3 , t , 6: a 5 } 2 3 6 2 2 ( 2 3 3) }5 0 m/sec 2 For 6 , t , 8: a 5 } 3 8 2 2 ( 2 6 3) } 5 3 m/sec 2 For 8 , t # 10: a 5 } 1 0 0 2 2 3 8 }52 1.5 m/sec 2 24. (a) The particle is moving left when the graph of s has negative slope, for 2 , t , 3 and for 5 , t # 6. The particle is moving right when the graph of s has positive slope, for 0 # t , 1. The particle is standing still when the graph of s is horizontal, for 1 , t , 2 and for 3 , t , 5. (b) For 0 # t , 1: v 5 } 2 1 2 2 0 0 } 5 2 cm/sec Speed 5 ) v ) 5 2 cm/sec For 1 , t , 2: v 5 } 2 2 2 2 2 1 } 5 0 cm/sec Speed 5 ) v ) 5 0 cm/sec For 2 , t , 3: v 5 } 2 3 2 2 2 2 2 }52 4 cm/sec Speed 5 ) v ) 5 4 cm/sec For 3 , t , 5: v 5 } 2 2 5 2 2 ( 2 3 2) }5 0 cm/sec Speed 5 ) v ) 5 0 cm/sec For 5 , t # 6: v 5 } 2 4 6 2 2 ( 2 5 2) }52
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online