1- Define with definition of each of them, (a) Speed, (b) Velocity, (c) Distance, (d)

Displacement, (e) Scientific Notation, (f) SI system, (g) Acceleration

1. What is difference between a vector and scalar? Give two examples of each. (b)What is free fall? How is it different than a projectile motion, give two examples of each?
2. Solve following problems to the significant numbers and write in scientific notation using metric system.

a- 0.020 km + 2.00 m + 300 cm +5000 mm, (b) 140.4586 + 12.343 + 4.21 + 0.5, (c) 3.60 * 0.6 + 2.0 4.

4- Use graphical method to find out resultant vector of given situation: A child started walking 2 m to North, then 2 m East, 5 m South, 5 m West. the 3 m North.

Draw drawing to support your answer.

5- A Vector has components Ax = - 4.5 m/s^2 and Ay = - 2.5 m/s^2. (a) What is the

magnitude of vector A? (b) What is the direction of A CCW from the +y-axis?

1. A rocket has a takeoff speed of 95.0 m/s and requires 2055 m to reach that speed. Determine the (a) acceleration of the plane and the b) time required to reach this speed.
2. Suppose that you are driving a car with 20 m/s in winter and then your car got skid to a stop in 10 s. Determine the skidding distance of the car (assume uniform acceleration).
3. A truck started with 8 m/s and then speeded up to reach at a certain place in 1 hr with 0.005 m/s^2. (a) What is its final speed? (b) How far will it go?
4. A basket was accidently. dropped from the second floor of a height of 4 m. (a)

Find out how long it will take to hit the ground.

B- What would be its velocity when it hits the ground?

10- Two right triangles have side "a" in common. "' is the size of angle BAC. Find tan(x), sin(x), cos(x).