(124 unread) - smith3826@yahoSample ExamPhysics 013b(43) Buddy Hield can't get emotix(124 unread)- smith3826@yahoNot secure huscience.org/phys013/index.php/sample-exam/C5. Write the vector a = li+1j in magnitude angle notation.6. Write the vector a=9, A" = 45 in component notation.7. Calculate the dot product of a li+2j+1k and b 1i+1j-3k.8. Calculate the cross product of a = li+2j+1k and b=1i+1j-3k.9. Calculate the dot product of vcctors a and b if a=2, b-3, and the anglebetween them is 90 degrees.10. Calculate the magnitude of the cross product of vectors a and b if a=2,b-3, and the angle between them is 90 degrees.11. A particle travels on the x axis. If its velocity is 10m/s at t 2s, what is itsvelocity at t0 seconds if it accelerates at 1m/s??12. What is the maximum height of a ball thrown upwards at 10 m/s?

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Asked Oct 18, 2019

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(124 unread) - smith3826@yaho
Sample Exam
Physics 013
b
(43) Buddy Hield can't get emotix
(124 unread)- smith3826@yaho
Not secure huscience.org/phys013/index.php/sample-exam/
C
5. Write the vector a = li+1j in magnitude angle notation.
6. Write the vector a=9, A" = 45 in component notation.
7. Calculate the dot product of a li+2j+1k and b 1i+1j-3k.
8. Calculate the cross product of a = li+2j+1k and b=1i+1j-3k.
9. Calculate the dot product of vcctors a and b if a=2, b-3, and the angle
between them is 90 degrees.
10. Calculate the magnitude of the cross product of vectors a and b if a=2,
b-3, and the angle between them is 90 degrees.
11. A particle travels on the x axis. If its velocity is 10m/s at t 2s, what is its
velocity at t0 seconds if it accelerates at 1m/s??
12. What is the maximum height of a ball thrown upwards at 10 m/s?
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(124 unread) - smith3826@yaho Sample Exam Physics 013 b (43) Buddy Hield can't get emotix (124 unread)- smith3826@yaho Not secure huscience.org/phys013/index.php/sample-exam/ C 5. Write the vector a = li+1j in magnitude angle notation. 6. Write the vector a=9, A" = 45 in component notation. 7. Calculate the dot product of a li+2j+1k and b 1i+1j-3k. 8. Calculate the cross product of a = li+2j+1k and b=1i+1j-3k. 9. Calculate the dot product of vcctors a and b if a=2, b-3, and the angle between them is 90 degrees. 10. Calculate the magnitude of the cross product of vectors a and b if a=2, b-3, and the angle between them is 90 degrees. 11. A particle travels on the x axis. If its velocity is 10m/s at t 2s, what is its velocity at t0 seconds if it accelerates at 1m/s?? 12. What is the maximum height of a ball thrown upwards at 10 m/s?

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Step 1

9.

The equation for dot product

ab la||b|cose
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ab la||b|cose

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Step 2

Substitute a=2 and b=3 and angle 90̊

a b-12|3|cos90°
0
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a b-12|3|cos90° 0

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Step 3

8.

The equation for sca...

axb la||b|sin
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axb la||b|sin

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