If you know that Based on the two equations y=0.85x2+0.41x+0.7 y=1.72x+0.44 What are the values of acceleration and initial position respectively from position-time equation? 1.7 m/s² 0.7 m 0.85 m/s² -0.7 m 1.64 m/s2 -0.7 m xFx;+v₁t+0.5at² and vFv₁+at 1.64 m/s² 0.7 m

ates) Tılı 80 1. The following graph displays the position of an object versus time. x(t) (m) 4 ● Accessibility: Investigate 2 The acceleration is positive The velocity is negative The speed is +0.5 m/s The position is at a maximum The object is still 900 2 4 Normal tv Using the graph, match each description of motion to the correct time interval. Not all given options are answers. No Spacing H + 6 8 10 Heading 1 MacBook Air t (sec) a) 0 4 e f) only 8 < t < 10 g) t < 2 h) none of the above DII Headine ● X . Fo

Using the following graph and data table please find: horizontal & vertical velocity, and the velocity at 0.155 sec and 0.255 sec (w) x (w) A Time (sec) 0.000 0.033 0.066 0.100 0.133 0.166 0.200 0.233 1.20 1.0 0.8 0.6 0.4 0.2 0 0 0.266 0.300 0.333 0.366 0.400 0.05 0.10 ● x (m) 1.200 1.141 1.079 1.017 0.959 0.899 0.837 0.779 0.717 0.657 0.601 0.546 0.489 0.15 0.20 time (s) 0.25 ... y (m) 1.051 1.040 1.017 0.980 0.933 0.878 0.806 0.730 0.636 0.536 0.416 0.303 0.174 0.30 ● 0.35 ● 0.40

Andrew has several tables filled with data describing moving objects. Which table has data thatdescribes an accelerating object?

2. A child running around in a field has the following position and velocity at time t = 0: x = 1.5 m, y = 2.0 m Vx = -3.5 m/s, vy=-1.0 m/s At time t = 2.5 s, it has the following position and velocity: x = -2.0 m, y = 1.5 m vx = -0.50 m/s, v, = 2.0 m/s Using this information, find the child's average velocity and average acceleration during that time interval. Write your answers in unit vector notation.

2. Where and when will they meet? Write the word problem with a conclusion. (4 marks) d = 24.0 m Person A Person B v = 4.00 m/s v = 3.00 m/s

3. A bee flies in a straight line (a "beeline" as they say). The initial speed of the bee is Vo = 100 cm/s. The acceleration of the bee versus position is given by the graph below. a [cm/s²] 500 0 -250 50 105 145 195 s [cm] a. At what position will the speed of the bee be maximum? Hint: it will be one of the labeled points: 0cm, 50cm, 105cm, 145cm or 195cm. b. What is the speed of the bee at that location? C. What is the speed of the bee after traveling the full 195cm? Hints: you don't need to figure the equations for the four lines to do the integrals, and be careful of the signs.

4. Consider path B in the figure to the right. What is (a) the distance traveled? (b) the A B C displacement? e D 0 2 4 6 8 10 12 displacement x (m)

15. A person runs around a square track that has a total length (perimeter) of 400 m. If he reaches the opposite corner of the track in 34.0 seconds, find the magnitude of the average velocity during this time. a) 2.94 m/s b) 4.16 m/s c) 5.88 m/s d) 11.8 m/s ✓ e) 2.08 m/s Length 400m 34.0 seconds

part 1 of 3 Consider the plot below describing motion along a straight line with an initial position of x0 = 10 m. 6T 5+ сл 4+ velocity (m/s) 3+ 2+ 1 0 -2- 123 456789 time (s) What is the position at 2 seconds? Answer in units of m. part 2 of 3 What is the position at 6 seconds? Answer in units of m.