SCI Physics (A) - Projectile Motion
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1) What are the two methods called that are used to add vectors?

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2) Explain the method of adding and subtracting vectors using the graphical method.

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3) In your own words - list the steps to follow in order to add vectors algebraically.

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This is only the first step.



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4) What does SOH CAH TOA stand for?

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You will use the following triangle to answer questions 5 through 10.

5) A = 4.2
B = 8.3
C = ?

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6) B = 6.9
C = 13.7
A = ?

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7)
A = 78.3
C = 102.7
B =  ?

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8)

C = 88.2

B = 33.6

 Angle = ? 


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9)

 C = ?

Angle = 34.8            

B = 44.5

 

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10) If an object is thrown into the air, how can you find the total time it takes the object to hit the ground?

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11) If two balls are released at the same height, one is dropped and one is thrown horizontally. Which ball will hit the ground first?

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12) What is a projectile?

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13) Two balls of equal size are released from the same height. Ball A is 3 times the mass as ball B. Which ball will hit the ground first

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14) What word is given to describe the distance an object travels horizontally?

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15) If an object is thrown into the air, and you need to find the total time that it takes to fall to the ground. Explain why you must multiply the time you find by 2.

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16) Why is the final velocity in the vertical direction always equal to zero m/s?

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17) A vector that is 14.3 units of magnitude points at an angle of 34.8 degrees above the negative x axis. Find Vx and Vy of the vector.

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18) Vector 1 is 6.6 units long and points along the negative X axis. Vector 2 is 8.5 units long and points at 45 degrees towards the northeast. Determine the sum of vector 1 + vector 2.

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19) What is the magnitude and direction of your displacement when your directions tell you to walk 225 m to the east , make a 90 degree turn to the north and walk 350 m, then make a 30 degree turn  north east and walk 125 meters?

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20)

A tiger leaps horizontally from a 6.5 m high rock with a speed of 3.5 m/s. How far from the base of the rock will the she land?


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21) A diver running 1.8 m/s dives out horizontally from the edge of a vertical cliff and 3 seconds later reaches the water below. How high was the cliff? And how far away from its base did the diver hit the water?

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22) A football is kicked at ground level with a speed of 18.0 m/s at an angle of 35 degrees. How much later does it hit the ground?

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23) A pilot of an airplane traveling 180 km/h wants to drop supplies to flood victims isolated on a patch of land 160 km below. The supplies should be dropped how many seconds before the plane is directly overhead?

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24) A projectile is fired with an initial speed of 65.2 m/s at an angle of 34.5 degrees above the horizontal. Determine
  1. The maximum height reached by the projectile
  2. The total time in the air
  3. The total horizontal distance covered.

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