Cameron Ware A-Day: Due Mon., Oct 19 B-Day: Due Tues., Oet 20 2009 Two Dimension

Question

Cameron Ware A-Day: Due Mon., Oct 19 B-Day: Due Tues., Oet 20 2009 Two Dimensions 7 Make sure you look at the past homeworks. This homework will not cover the entire test: there's not enough time. 1u assumes that you have done the other homeworks, too 1. or 07 A.-_Vector A's x-component? B.Vector E's x-component? C. Vector B's x-compoeent? D.- Vector F's y-component? 2. Draw the resultant for D+2G-E+H From the "Projechile Motion notes The x and y velocities of position B are given at the left. Below are the four other positions from the diagram. Put the correet letters in the circles below 3. Vx 4. Ifan ball rolls off of a 2 m tall table going 4 m/s, A. What is its y? C. What is a? E. What is Vy? B. What is a,? D. What is V.? F. What is the x-direction acceleration for any projectile? G. If the initial Vx- 15 m/s, what is the final Vx? . What kind of symbiosis: Mutualism; Commensalism; Predation; Parasitism? A. A fox lives in a hole made by the roots of a tree. The tree is neither helped nor harmed. B. A leech latches onto a human and drinks the human's blood. C. In human stomachs, bacteria eat the plants we eat, helping us digest the plant matter D. When a human eats a steak 6. What direction do we use for this A ball is shot 5 m's off of a 6 m tall table. A. Write the x and y variables for the ball. 7. 5 m/s B. Calculate its hang time (time). 6 m C. Calculate its range (how far away it lands). Copyright 0 2009, C Stephen M

Explanation / Answer

Q1.

As the vector A is pointing n right direction as it is horizontal only so ,

x component of A vector will be positive.

As vector B is vertical so it has no horizontal component so it's x component will be zero.

X component of vector B will point in the left direction so, it will be negative x component.

y component of F vector will be negative as it will point in the downward direction.

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