position of a particle as it travels along the x-axis. At what value of t is the velocity of the particle equal to zero? (A) 1 s Answer: velocity = slope of x vs t line (B) 2 s slope = 0 at t = 3 s (C) 3 s (D) 4 s MCQ 2: A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average velocity? (A) 2.5 m/s ∆ (B) 5.0 m/s Answer: 0 m/s ∆ ∆ (C) 10 m/s (D) 0 m/s MCQ 3: You
Premium Force Velocity Classical mechanics
average was taken and this was repeated for 5 animals at 15oC and 25oC. The calculated average velocity of the animal was also collated with class results and recorded in a table RESULTS Length-specific O2 consumption rate was shown to be slightly higher in the warmer temperature of 25oC compared to the O2 consumption rate of artemia at 15oC (Figure 1). Contrastingly‚ the opposite applies for velocity‚ with the artemia in the colder environment of 15oC showing faster speeds of movement in comparison
Premium Measurement Units of measurement Velocity
Stopping Distance and Reaction Time 20 m s -1 A B O positive direction 40 m The driver in the car B sees the man A 40 m away at time t = 0. The velocity of the car changes according to the graph below. V / m s-1 40 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 t/s V / m s-1 40 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 Will the car B collide with the man A ? 3.5 4.0 4.5 5.0 5.5 t/s
Premium Automobile Tire Classical mechanics
slowing down‚speeding up‚ and turning provide a sufficient vocabulary for describing the motion of objects. In physics‚ we use these words and many more. We will be expanding upon this vocabulary list with words such as distance‚ displacement‚speed‚ velocity‚ and acceleration. As we will soon see‚ these words are associated with mathematical quantities that have strict definitions. The mathematical quantities that are used to describe the motion of objects can be divided into two categories. The quantity
Premium Quantum mechanics Speed Physics
physics 5/23/13 Constant motion Fill in the Blank (constant velocity) 1)Neither( ) nor ( ) of motion changes 2)y7ui8z Vocabulary Matching 3) A)how fast something moves; an expression of how much time it takes for a change in position to occur; rate of motion; rate of change of position( ) B)The speed of an object in a particular direction; ratio of change in position to time interval over which change takes place.( ) C)quantity having
Premium Baseball Baseball positions Velocity
production and reaction velocity increased with increasing catalase concentration‚ however‚ the 33% percent catalase concentration showed a drop of 0.175 mL O2/s compared to the 25% catalase concentration (figure 1.2). The velocity of 25% catalase was 0.275 mL/s‚ 33% was 0.1 mL/s‚ 50% was 0.435 mL/s‚ and 75% catalase was 0.575 mL/s (figure 1.1). The 50% catalase concentration produced the most O2 overall however the 75% catalase concentration had the fastest initial reaction velocity. Experiment III:
Premium Enzyme Chemical reaction Chemical kinetics
on a computer screen has a position of r = [4 cm + (2.5 cm/s2)t2]i + (5 cm/s)t j. a) Find the magnitude and direction of the dot’s average velocity between t = 0 and t = 2 s. b) Find the magnitude and direction of the instantaneous velocity at t = 0‚ t = 1 s‚ nd t = 2 s. c) Sketch the dot’s trajectory from t = 0 to t = 2 s‚ and show the velocities calculated in part (b). (a) Identify and Set Up: From [pic] we can calculate x and y for any t. Then use Eq. (3.2)‚ in component
Premium Velocity Analytic geometry Mathematics
path. In order to find the object’s velocity‚ one needs to find its displacement vector over the specific time interval. The change in position‚ or the object’s displacement‚ is represented by the change in r. Also‚ remember that a position vector is a displacement vector with its tail at the origin. It is already known that the average velocity of a moving object is ᐃd/ ᐃt‚ so for an object in circular motion‚ the equation is ᐃr/ ᐃt. IN other words the velocity vector has the same direction as the
Premium Velocity Kinematics Acceleration
Motions Go to http://phet.colorado.edu/simulations/sims.php?sim=Ladybug_Motion_2D and click on Run Now. Directions: 1. A Labybug was crawling in a circle around a flower like in the picture below. a. Sketch what you think the velocity and acceleration vectors would look like. b. If the flower is the “zero” position‚ what would the position vector look like? c. Use Ladybug Motion 2D to check your ideas. Make corrections if necessary 2. Suppose the bug
Premium Velocity Geometry Circle
Variables used in this lab were “x” for position of the object‚ “v” for velocity of the object‚ and “a” for acceleration of the object. Understanding the graphical representation of motion was important in helping students understand how position‚ velocity‚ and acceleration are affected with a moving object over a certain period of time. Using a motion detector and an Xplorer GLX‚ a calculator that graphed our distance velocity‚ and acceleration‚ students were able to create graphs for the information
Premium Acceleration Velocity Kinematics