Pre-Calc Homework Solutions 85

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

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

View Full Document Right Arrow Icon
(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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/05/2011 for the course MAC 1147 taught by Professor German during the Fall '08 term at University of Florida.

Ask a homework question - tutors are online