Universiti Teknologi MARA - PHY430... · Web viewSOLUTIONS – PHY430 – Exercises – Sept 2012...
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45 45 x y 1 SOLUTIONS – PHY430 – Exercises – Sept 2012 – Jan 2013 Question 13 page 16 ρ= m V = ( 23.94 g 210 cm 3 ) ( 1 kg 1000 g ) ( 10 6 cm 3 1 m 3 ) =11400 kg m 3 Question 36 page 70 a) R=( B cos45 °+C cos 45 ° ) ^ i+( A +B sin45 °−C sin45 °) ^ j b) R= √ R x 2 +R y 2 ¿ √ ( 40.0cos45 °+30.0 cos 45° ) 2 +( 20.0+ 40.0 sin 45 °−30.0sin45 ° ) 2 ¿ √ 2450 +733 ¿ 56.4 unit s tan θ= R y R x ∴θ=tan −1 ( 733 2450 ) =16.7 Question 29 page 50 x−x o =v o t+ 1 2 at 2 62.4 =v o ( 4.20) + 1 2 (−5.60 )( 4.20) 2 R x R y
Transcript of Universiti Teknologi MARA - PHY430... · Web viewSOLUTIONS – PHY430 – Exercises – Sept 2012...
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SOLUTIONS – PHY430 – Exercises – Sept 2012 – Jan 2013
Question 13 page 16
(4545xy)Question 36 page 70
a)
b)
Question 29 page 50
Question 48 page 52
Question 25 page 133
Question 2 page 158/Question 42 page 195/ Question 15 page 225
Question 32 page 227/Question 11 page 308
Question 6 page 483/Question 7 page 483/ Question 8 page 593
Question 32 page 368/Question 25 page 425
Question 31 page 594/Question 5 page 457