sol2 - miles hour ൌ 58miles ൈ 1km 0.6214miles ൈ 1...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1. question 21 page 35 a. Velocity is vector quantity. If we set the forward movement to the positive vector, the car moves forward because velocity is everywhere positive on the graph. b. ans: A , The change of velocity is greatest, or slope is deepest. 2. question E1 page 36 Speed ൌ Distance time 460miles 8hours ൌ 57.5miles/hours The units of speed can be converted from one unit to another, for example, miles/hour, meter/sec, or km/hours. So, you have to write the unit when you solve the this kind of problem. 3. question E6 page 36 Time ൌ Distance Speed 300miles 62MPHሺmiles per hoursሻ ൌ 4.84hours 4. question E7 page 36 1.2m s ൌ 1.2m ൈ 1km 1000m 60s 1min 60min 1hour ൌ 4.32km/hour (3600s = 1hour) 5. question E9 page 36 58MPH ൌ 58
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: miles hour ൌ 58miles ൈ 1km 0.6214miles ൈ 1 hour ൌ 93.34km/hour 6. question E10 page 36 Average acceleration ൌ Velocity time ൌ 7m/s 2s ൌ 3.5m/s ଶ 7. question E14 page 36 a : V=V +at = 2.0m/s+1.2m/s 2 x 2s=4.4m/s b: d= V t+ ଵ ଶ at 2 = 2m/s x 2s + ଵ ଶ x 1.2m/s 2 x 4 s 2 = 6.4m 8. question E16 page 36 a : V=V +at = 4.0m/s+(-1.5)m/s 2 x 2s=1m/s b: d= V t+ ଵ ଶ at 2 = 4m/s x 2s + ଵ ଶ x ( -1.5m/s 2 ) x 4 s 2 = 5m 9. question E17 page 36 Time = ଵ଴଴୫ ଵଵ୫/ୱ ൌ 9.09s 10. question SP4 parts a and b (NOT c) page 36 a. V=V +at t = VିV బ ୟ ൌ (24m/s – 14m/s) ൊ 2m/s 2 =5s b. d= V t+ ଵ ଶ at 2 = 14m/s x 5s + ଵ ଶ x 2.0m/ s 2 x 25 s 2 =95m...
View Full Document

This note was uploaded on 09/23/2009 for the course PHY 59335 taught by Professor Fischeller during the Fall '09 term at University of Texas.

Page1 / 2

sol2 - miles hour ൌ 58miles ൈ 1km 0.6214miles ൈ 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online