Find the following for path A in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish.

65. ssm A person who walks for exercise produces the position-time graph given with this problem. (a) Without doing any calculations, decide which segments of the graph (A, B, C, or D) indicate positive, negative, and zero average velocities. (b) Calculate the average velocity for each segment to verify your answers to part (a). +1.25 +1.00 A +0.75 D +0.50 +0.25 0.20 0.40 0.60 0.80 1.00 Time i (h) Position x km)

The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t, where t is inseconds. If the object has a velocity 1.00 m/s at time t = 1.00 s, what is the displacement of the objectbetween time t = 2.00 s and time t = 4.00 s?A) 33.0 m B) 36.0 m C) 30.0 m D) 27.0 m

9) A ball goes up and then goes down. This means ( O the time changes direction O its velocity was in the +y direction and later in the -y direction O its acceleration changes direction O its velocity was initially in the-y direction and then in the +y direction 10) An object goes from xi=3m to xf=-6m. Its displacement is O (9m,Om) O(3m,0m) O(3m,0m) O (9m.0m)

Two airplanes leave an airport at the sametime. The velocity of the first airplane is680 m/h at a heading of 51.6◦. The velocityof the second is 640 m/h at a heading of 176◦.How far apart are they after 2.3 h?Answer in units of m.

Figure 2-42 shows a simple device for measuring your reaction time. It consists of a cardboard strip marked with a scale and two large dots. A friend holds the strip vertically, with thumb and forefinger at the dot on the right in Fig. 2-42. You then position your thumb and forefinger at the other dot (on the left in Fig. 2-42), being careful not to touch the strip. Your friend releases the strip, and you try to pinch it as soon as possible after you see it begin to fall. The mark at the place where you pinch the strip gives your reaction time. (a) How far from the lower dot should you place the 50.0 ms mark? How much higher should you place the marks for (b) 100, (c) 150, (d) 200, and (e) 250 ms? (For example, should the 100 ms marker be 2 times as far from the dot as the 50 ms marker? If so, give an answer of 2 times. Can you find any pattern in the answers?)

A mouse wants to jump onto a table that is [y] cm high in order to escape from my cat Jackie. Standing [x] cm from the table it jumps, leaving the  ground at an angle of [th] degrees, landing on the edge of the table. What is the initial speed of the mouse in meters per second?

The driver of a car traveling on the highway suddenly slams on the brakes because of a slowdown in traffic ahead. a) If the car’s speed decreases at a constant rate from 75 mi/hmi/h to 40 mi/hmi/h in 3.0 ss, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? b) What distance does the car travel during the braking period?

a) If a car is travelling in one direction on a straight route, is there any difference i magnitude of average velocity and magnitude of average speed? Explain why. JJTM Utween