A particle moves along a straight line with acceleration a = and x(0) = 3m, please determine (for 0sts 10 sec): (a) Total distance travelled, d (Drawa displacement plot) (b) Displacement, (c) Average Speed 2t-9m/s. If v(0) = 14m/s %3!
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- 4. A particle start from rest and moves in straight line with an acceleration of a- (2t-6) m/s, where t is in seconds. What is the particles velocity when t-és (V(6) - Om/s ), and what is its position when t- 11s?(80.7 m)2. You walk 30 m South and heads 30 m East. What is your resultant displacement? 2 An cirplane fios due porth ot 1 50 km /h15. A ball is hit upward with an initial velocity of 128 feet per second. After t seconds, its height h(t) is given by the function h(t) = -16t?+128t+4. What is the maximum height in feet of the ball? a. 268 feet b. 256 feet C. 264 feet d. 260 feet
- 3. A particle moves along a straight line with an acceleration of a = 3s m/s?. If at s-0m, the velocity v = 2m/s. Determine v at s = V20 m. Tho drinking fountain ic dorigned cuch that nozle is located 100mm from the edge of the2. A cheetah moving in a constant acceleration covers the distance between two points 70.0m apart in 7.00s. Its speed as it passes the second point is 15.0m/s a. What is its speed at the first point? b. What is its acceleration?QUESTION 5 A cannonball is launched from ground level with an initial speed of vo straight up in the air What will be the speed of the cannonball when it achieves a vertical height h and is still moving upward? OA. 2gh OB. vỏ – 2gh vỏ - 2gh - C. OD. 2gh OE. Vvỏ + 2gh
- 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…1つ7 3. An object undergoes motion in 2 dimensions under a constant acceleration of "-2.50 m/s at an angle of 50.0° with respect to the + x direction. It also has an initial velocity of vi = 7.00 m/s at an angle of 10,0° The object begins at the coordinates (0, 0). a) What are the coordinates of the object at t = 7.00 s? Want Cx, y) at t =?4 4tzテメ0チ=XT vse this Con Vxi = \V;l cos v +ハ Ay=lalsin Ga b) What is its total velocity vector of the object as a magnitude and direction at t = 7.00 s? a) Ov= Toncomplete solution 1. What is the magnitude of the displacement of a car that travels 7.6 mi east and then 8.9 mi north? One mile is 1609.34 meters. 2. A car that travels at 8.9 km/hr for 2.0 hrs, at 3.6 km/hr for 1.0 hr and at 2 km/hr for half an hour. What is its average speed? 3. If the ball was kicked from ground gaining a velocity of 87 m/s at 5.9 degrees from the horizontal. Find the velocity of the ball when it reached maximum height. Select one: a. 86.5391 m/s b. 8.9430 m/s c. 9.81 m/s d. 0 m/s 4. In a construction site, a heavy hollow block falls down from a height of 63m above the ground. Unfortunately, there is a man 6ft height tall right below the incident. As to what maximum time should the man react as to safely move away from the falling block?1m = 3.2808ft 5. A hiker goes 6 km, 67 degrees east of north then changes direction and goes 5 km, 34 degrees west of north. How far is he from the starting point?
- PAGE 82. Savannah Dread HOMEWORK CHAPTER 3 t= d= 9 Water pistol horizontally aimed. The speed stream is v, = 5.00 m/s. a) How far has stream dropped at 1.00 m out? b) At what distance out will it have dropped 1.0 cm (= .010 m)? Ans. a. -1.96 x 10¹ m (- 19.6 cm), b. 2.26 x 10¹ m (22.6 cm) d4. You attach a meter stick o an oak tree, such that the top of the meter stick is 2.27 meters above the ground. Later, an acorn falls from somewhere higher up in the tree. If the acorn takes 0.241 seconds to pass the length of the meter stick, how high ho above the ground was the acorn before it fell, assuming that the acorn did not run into any branches or leaves on the way down?#1: Graphing exercise using Spencer Mussey NHRA table Cata: plot. the displacement Ns. interal times given & draw Guide to the eyc" cerve fit from this curve, estimate the instatanews Velocities. & fill table a Speed (ft/sec) Speed (mph) distance 60ft 3301 660FF loooft time 0.645 2.129 3.007 3.745