3.5 3 2.5 2 1.5 1 0.5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 t(s) The plot shows the positions of two cars A (the red line) and 8 (the blue line). At what time is the velocity of A and B the same? O They never have the same velocity. O 2.50 s O 1.67 s O 3.33 s
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- 1. A train leaves the station on a 50 km commute. The train must make a 60-second stopevery 1.0 km to pick up and drop off passengers. The train accelerates at 2.0 m/s2, then cruises at90 km/h, and then decelerates at 5.0 m/s2 between stops.(a.} How many stops does the train make?(b.} How long does it take for the train to get from one stop to the next?(c.} What is the total time for the entire commute?The velocity vs. time graph for an object in motion is shown below. What is the total distance traveled by the object? velocity vs time 2.5 2 1.5 1 0.5 1 2 4 5 -0.5 -1 -1.5 time (s) 16 m 4 m 8 m 2 m 3. velocity (m/s) O O O8:07 AM P. +234 813 145 1114 1 minute ago O+ 4653 91 . A stone thrown vertically upwards returns to the ground. Which of the following figures represents the velocity-time graph? ΣΤ T 2T ??? D. Vel n о
- While standing on a bridge 13.9 m above the ground, you drop a stone from rest. When the stone has fallen 3.30 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the downward direction to be the negative direction. Number i UnitsA particle moves in such a way that a = 2t + 2 m/s/s, where t is in seconds. Determine the velocity ( m/s ) of the particle after 5 seconds. O 15 O 25 O 30 O 37the figure. 2 For t> 3 s. ✓ Correct! The position as a function of time for a particle moving along the x-axis is shown v(mis) - is the partiele moving in the X ✓ Correct! x(m) 1 0.75 0.5 0.25 A Otheexp The position of the particle as a function of time is given by x(t) = e(t - 3)², where x is in meters and t is in seconds. What is the v the particle, in meters per second, at t = 2.9 s? v(t) = 1
- The displacement and the corresponding time of a moving body at constant acceleration is recorded as follows: Time (s) Displacement (m) From these data, what is the average acceleration of the motion? O 5.5 m/s² O 6.9 m/s² 1 3 2 13.2 O-2.2 m/s² O It is not moving at constant acceleration. O 2.2 m/s2 3 21.2 4 27 5 30.6A runner is training for an upcoming road race and sets out for a weekend endurance run. In order to track the pace of the run, the runner records time splits for the entire period. This allows the runner to produce the pictured velocity versus time graph. The run is broken into six segments. 4.75 4.50 - 4.25 - 4.00 - 3.75 - 3.50 - 3 2. 6. 3.25 1 3.00 2.75 2.50 - 2.25 2.00 + 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Time (min) The average acceleration of the runner during segment 1 is zero. O positive. negative. flat. Velocity (m/s) 4.This is the vx-tgraph for an object moving along the x-axis. Which of the following descriptions of the motion is most accurate? Vx The object is speeding up at an increasing rate. The object's speed is changing at a steady rate. O The object is slowing down at an increasing rate. The object is slowing down at a decreasing rate. The object is speeding up at a decreasing rate.
- Velocity Problem 1. The position of an object is given as a function of time as x(t) = (3.0 m/s)t + (2.0 m/s2)t2. What is the average velocity of the object between t-0.0s and t = 2.0 SPWhich statement is true? O Average velocity can be zero when average speed is not. O Average velocity is always positive. O Speed describes how fast and in what direction an object is moving. O Average speed is the same as average velocityWhat is the average velocity of this displacement time graph. My answer is 0.0833m/s because I am diving the final displacement of 2 metres by 24 seconds.