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- A J8 jC =2.83km todW 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. こ was a. What DISTANCE did the rider go? b. What DISPLACEMENT did the rider Zmi have at the end of the trip? (length and direction) AD? AE2+BC2 AD2 = 12+3 SAD? =STO 233MATEI0 forlW.o 3 mi 1o bns s 3+2+1=16mi(distance) AD = 3.162 AD=3.16miDraw the v-t and st graphs if v = 0, s = 0 when t=0. a (m/s?) t(s) -2A rock is tossed from the top of a building at an angle of 20° above the horizontal with an initial speed of 17 m/s. The rock lands on the ground 2.9 s after it is tossed. What is the height of the building (in m)? m
- 6. a) Describe the motion pictured by the v-vs.-t graph shown. v(m/s), + 6 7 H t(s) 4.ock University Physics - HW for Chapter 3 W for Chapter 3 $ 4 000 000 F4 What are the x- and y- components of the initial velocity (in m/s) ? v0x= A car is travelling North at 47.5 km/h. The car makes a left turn and 16 s later it is travelling at speed 39.8 km/h. Assume that NORTH is the direction and EAST is the direction. "fx = Number Number What are the x- and y-components of the final velocity (in m/s) ? Av Number = a = Number East of North East West of South m/s; What are the x- and y-components of the change in velocity (in m/s)? East of South % brock-physics.mobius.cloud Physics@Brock 5 m/s; F5 Determine the magnitude of the average acceleration in the turn in m/s² "Oy= Number voy m/s2 "fy = Number m/s; Avy = Number ^ 6 Choose roughly the direction of the acceleration. Recall NORTH is the y direction and EAST is the direction: West of North MacBook Air m/s. F6 m/s & 7 F7 m/s * 00 PHYSICS LAB 3 - Google Docs 8 Submit Assignment DII F8 ( 9 F9 Quit & Save ) O Help | Joshua…You throw a ball off a cliff at t = 0. Its motion is described by this position vector = 40 mj + (5 m/s)ti - (4.9 m/s²)t² j. How far from the bottom of the cliff will it hit water? Express your answer to two significant figures and include the appropriate units. HA Value Units = 1 Submit Request Answer
- The figure shows a building 46.0 meters high. You sit on the roof at the leftmost edge of the building. Your professor is 1.80 meters tall and he is walking toward this edge of the building with a speed of 1.20 meters per second. v = 1.20 m/s 1.80 m-v(t) (m/s) 39. Sketch the acceleration-versus-time graph from the following velocity-versus-time graph. Velocity vs. Time 10 864 2 0 -2. -4 -6 -8 -10- 0 Search this book 10 Q 1 1 I 20 30 40 50 60 70 80 90 100 Time (s)A train traveling at vo = 20.0 m/s begins to brake by applying a velocity-dependent insta < Feedback m/s² a(v) = D = where a = -22.0 m²/s3, v is the instantaneous velocity of the train, and u = 0.5 m/s. Determine the distance D traveled by the train before it comes to a complete stop. α v+u 125.758 Incorrect Use calculus to derive the equation for the train's velocity as a function of time from the explicit dependence of the acceleration on velocity. a (v) = du dt = α (v +u) α (v +u) (v +u) dv = (a) dt Integrate both sides of this equation to obtain an expression for u in terms of t. Make sure to use appropriate integration limits or boundary conditions. Then, set v = 0 and solve for the time it takes the train to stop. Follow a similar procedure to obtain an expression for distance as a function of time. The resulting
- The velocity-versus-time graph for an object moving along an x-axis is shown below. The initial position of the object is xo = -10.0 m. V (m/s) 4- t (s) 4 0. a) Draw a motion diagram of the object. Be sure to label your velocity and acceleration vectors. 0. b) What are the position, velocity, and acceleration of the object at t = 3 s? You must show all %3D of your work to get full credit. c) Sketch the object's position-versus-time graph and acceleration-versus-time graph. 2.v (m/s) 325 v = 40t - 75 125 v= 5t t (s) 10 A motorcyclist travels along a straight road. His velocity is shown in the v-t graph. A) Construct the s-t graph B) What is the total distance travelled? (Non-anonymous questionO) (20 Rointc)v (m/s) 3- In the shown figure, what is the magnitude of acceleration at s = 1.75 m? c) -2 m/s? v = -2s + 4 a) 2 m/s? b) -1 m/s? d) -14 m/s? e) 1 m/s? f) None of them s (m)