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Directions: Read the questions 1. Which of the following is the negation of the vector 12 carefully and write your answers in the space pro a) (12 em,0) c) (12 cm, 180°) b) (12 cm, 90) d) (-12 cm, 180) 2. Which of the following is the vector (8 em, 60°) in rectangular coordinates. d)4i+4v3 3. The velocity of a projectile at its highest poiat is always a Negative c Zero b Positive d Equal to the initial velocity 4. Circle all scalar quantities. a) time c) acceleration b) speed d) displacement
5. The standard SI units of mass, time and length respactivey are b) kilograms, seconds, meters a) grams, seconds, meters c) meters, seconds, kilograms mJ4)stu,scomds,fet 6. A square piece of aluminium with as mass of 5.4g has a length of 2 cm and a thickness of 5 mm. What is the density of the piece of aluminium in V OFF 7. A ball is thrown into the air with a velocity of Sm/s from long does it take the ball to hit the ground? on top of a 36m building. How 8. The velocity of a particle is What is the speed of the particle at t 3s?
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An es O So 1gU -12c e 1go

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