Describe the direction of motion of the following objects based on the slope of their position-time graphs: 8. Positive slope 9. Negative slope 10. Slope equals zero (horizontal line)
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- Romeo is throwing pebbles gently up to Juliet's window, and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden hhh = 7.5 mm below her window and LLL = 7.7 mm from the base of the wall (Figure 1). How fast are the pebbles going when they hit her window? Express your answer to two significant figures and include the appropriate units.1. If an object is moving with constant acceleration, what is the shape of its velocity vs. time graph? What is the significance of the slope? What is the significance of the y-intercept? 2. If an object is moving with constant acceleration, what is the shape of its distance vs. time graph? What is the significance of the slope of a distance vs. time curve? What is the significance of the y-intercept?Explain the formula derivation of "Position as a function velocity and time". How the formula is derived? Just explain it using words and avoid citing example and writting too much number. Explain it comprehensiviley in your own words.
- "A jet plane is cruising at 320 m/sm/s when suddenly the pilot turns the engines up to full throttle. After traveling 4.8 km , the jet is moving with a speed of 400 m/sm/s. What is the jet's acceleration, assuming it to be a constant acceleration? Express your answer to two significant figures and include the appropriate units." I am having issues setting up word problems to begin solving. Need an easier method or technique to help deciper these.Solve part 1 of the exercise, please. 1.-Give the equation which relates the quantities of velocity, displacement, and time for an object moving at a constant velocity.As shown in Figure 2.9, Whipple chose a coordinate system that was different from Cralls. There are many possible coordinate systems that can be used to analyze the motion of the cart. For example, a third student (Yoon) chose to place the origin of her coordinate system at position A (the) carts initial position) and use a southward-pointing y axis as her positive axis. a. Use the distance information given in Table 2.2 to make a new table that gives the carts position at each of the 16 times according to Yoons coordinate system. Hint: A sketch similar to Figure 2.9 is a good place to start. b. Use the data in your table to make a new position-versus-time graph. Hint: CHECK and THINK about your graph by comparing it with Figure 2.6.
- Hi I am in physics 1 and I need help with this problem. It saids a boy runs in an open field. He runs 233m due north in 77 seconds, turns 90 degrees to his left and runs 178m in 93 seconds. Sketch a map of his motion and find the following quantities of his motion during this period from starting time to final time a) Map of his motion b) The total distance he runs (233m + 178m= 411m) c) The displacement from starting position to final position. What I have thus far is I got c=sqrt (233)^2+(178)^2=293m. Would I subtract this number from the total distance? Please includes detailed steps of how to solve thisCalculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. What is the maximum height reached by the rock? How long would it take to reach the ground if it is thrown straight down with the same initial speed? Clearly state the formulae you’re using and what your letters/symbols mean.Answer the ff: 1. DISTANCE VS. DISPLACEMENT: The rescuers walks 20 km west, then 30 km north, then 15 km west, then 10 km north to locate the victims of the landslide. What is the rescuers TOTAL DISTANCE? What is the rescuers TOTAL DISPLACEMENT? 2. SPEED VS. VELOCITY: Man Naki holds a record of 20 s for the men’s 200-m race at the SEA games. What was his SPEED? 3.ACCELERATION: A car accelerates at a rate of 3.0 m/s². If its original speed is 8.0 m/s, how many seconds will it take the car to reach a final speed of 25.0 m/s?
- what would the motion look like for a person starting some distance away from the origin and walking at constant speed to the right? Draw a graph of position vs. time for a person starting 0.4 to the right of the origin and walking at constant speed to the right. Please include explanation of your predictions.Using the concept of kinematic graphing, draw the displacement, velocity and acceleration curves for a condition where a track cyclist is undergoing constant horizontal acceleration at 2 m/s2 for the first 4 seconds of a race. Show calculations for displacement and velocity at 1, 2, 3 and 4 seconds and include these specific time points in your three plots. Assume the cyclist is at a stand still at time = 0 and his initial displacement and velocity are both equal to 0.1. A foot ball is kicked vertically upward from the ground and a student gazing at a window sees it coming upward passed him at 16 ft/sec^2. The window is 30 ft above the ground. a) how high does the ball go above the ground? b) how long does it take to go from a height of 30 ft to the highest point?