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January 31, 2015

January 31, 2015

Posted by **Becca** on Wednesday, February 20, 2013 at 4:24pm.

Which image point has the coordinates (1, 4, 3) after a translation using the vector 1, 2, 3?

2. What point represents a reflection of B over the xy-plane?

B'(?)

3. The vector has a magnitude of 6.1 inches and a direction of 55°. Find the magnitude of its veritcal component. (?) inches

4. Aaron kicked a soccer ball with an initial velocity of 39 feet per second at an angle of 44° with the horizontal.

After 0.9 second, how far has the ball traveled horizontally? (?)ft

After 1.5 seconds, how far has the ball traveled vertically? (?) ft

28. The vector has a magnitude of 5 inches and a direction of 32°. Find the magnitude of its vertical component. ?in.

- Calculus -
**Steve**, Wednesday, February 20, 2013 at 4:43pm#1 well (1,4,3)-(1,2,3) = (0,2,0)

#2 B'(x,y,z) = (x,y,-z)

#3 y = 6.1 sin55°

#4

Vx = 39 cos44°

in .9 sec, it travels .9 * Vx

Vy = 39 sin44°

h(t) = Vy*t - 16t^2

#5 Just like #3

- Calculus -
**Becca**, Wednesday, February 20, 2013 at 5:44pmoh my goodness, that was so helpful! Thankyou :) i think i got them all!

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