A runner goes North for 3 km, then turns and heads South for 5 km, then turns North again for 4 km. t dtod svi JA WOHS Draw a diagram in part "a" to show the path the runner took. entonit a. What DISTANCE did the runner go? otai S.onibl b. What DISPLACEMENT did the runner 3+4+5= Rkm distance have at the end of the trip? (length and direction)
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- ©20. A railroad freight yard switch engine on a straight track trav- els 1000. m to the end of the track, then back 600. m, then forward 300. m. a. What is the switch engine's final displacement from its starting position? b. How far did it travel?A kangaroo can jump over an object 2.7 m high. a. Calculate its vertical speed when it leaves the ground, in meters per second. b. How many seconds is it in the air?4. A runner goes North for 3 km, then turns and heads South for 5 km, then turns North gogin gint dops not TU 3 d sit bno 35MATZI0 at dtod aya took. for 4 km. Draw a diagram in part "a" to show the path the 29notzib 1ot noitibbo- b. What DISPLACEMENT did the runner a. What DISTANCE did the runner go? mu1osiT nos1opority9 art onizhave at the end of the trip? (length and direction) .m0L ot dtno nat ml 010t dtuo2 aboord girda sziuɔ A I loot toɔ art dtoq sit worlz ot "o" troq ni monpoib D wond Sanop sɔnotaib alt 2ow tordW.D Stasmscplgaib sit 2ow tordW.d (anop noitasnib bno dtpnsl) 5. A hoverboard rider goes straight down Arkansas Avenue for 2 miles, then turns left and goes straight for 3 miles, then turns right and goes 1 mile before stopping. Draw a diagram in part "a" to show the path the hoverboard rider took. 1stam 08 1b. What. Whet srltono not tripionte ow bno nippo tdoin have at the end of the trip? (length and a. What DISTANCE did the rider go? PLACEMENT did the ridert2ol A S Which…
- A football player makes a touchdown run of 100 yards in a time of 1.5 seconds. What is the av.speed in m/s during his run? ( 1 yard = 0.9144 meters) DON'T ROUND YOUR ANSWER. a. 60.96 m/s b. 1.3716 m/s c. 0.6096 m/s d. 137.16 m/sProblem 3 A volleyball is thrown with an initial velocity at 30 m/s at an angle 40° above the horizontal. Find the following: 1. Sketch the problem and label the important parts 2. Total time flight 3. Maximum height reached 4. Horizontal distance from the starting point will the volleyball attains its original level. (1) Given and Unknown Idgi to omis letor o bail coe31. Bob walks 200 m south, then jogs 400 m southwest, then walks 200 m in a direction 300 east of north. a. Draw an accurate graphical representation of Bob?s motion. Use a ruler and a protractor! h. Use either trigonometry or components to find the displacement that will return Bob to his starting point by the most direct route. Give your answer as a distance and a direction. c. Does your answer lo part b agree with what you can measure on your diagram of part a?
- A rock is dropped from the top of a building. Rock starts from rest and it takes 7 seconds to reach the ground. How far did the rock travel in 7 seonds. Ignore air drag and friction. Use g =9.8m/s2. (Don't round your answer). Choose correct answer with the correct unit. A. 240.1 m/s B. 240.1 m C. 34.3 m/s D. 34.3 m2. A jet plane has a takeoff speed of vtakeoff = 73 m/s and can move along the runway at an average acceleration of 2.4 m/s2. The runway is 1.2 km. Write out the 3 Kinetic equations. a. b. Write out the values of initial position, initial velocity, and acceleration. How many seconds will it take for the plane to reach takeoff speed? с. d. How far will the plane have to travel to get to takeoff speed? will the plane be able to get to take off before it gets to the end of the runway? е.1. A clock has a 20 cm minute hand. From the 3 mark to the 6 mark, for the tip of the minute hand: Express your answers in units of cm, min a. Graphically label the displacement vector, average velocity vector, and the average acceleration vector. b. Calculate the average velocity vector in unit-vector notation. c. Calculate the average acceleration vector in unit-vector notation. Y |12 13 9 X
- At the end of a race a runner decelerates from a velocity of 8.70 m/s at a rate of 1.80 m/s2. A. How far in meters does she travel in the next 5.30 s? (Assume the deceleration of 1.80 m/s2is constant over the full 5.30 s.) B. What is her final velocity in m/s? C. Evaluate the result. Does it make sense? (Hint: what is the algebraic sign of the velocity, and what does it imply)6. A bicyclist rides at 430 ft/min. If they ride for 45 min, how far have they 6. A bicyclist rides at 430 ft/min Tf they ride for 45 min, how far have they gone? a. 0.105 ft 9.56 ft 19350 ft d. 475 ft e. 430 ftAn object is thrown off the top of a 48 m y’all building with a velocity of 375 m/s at an angle of 7.2 degrees with respect to the horizontal. a. How long is the object in the air in seconds? b. What is the maximum height the object reaches above the ground in meters? c. What is the horizontal distance the object covers in meters?