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- 1. If you walk 500 m due North and then 200 m due South,a. What is your total distance covered?b. What is your displacement? 2. A spacecraft traveling at 1200 m/s is uniformly accelerated at the rate of 150 m/s2 by burning itssecond stage rocket. If the rocket burns for 18 seconds, what is the final speed of the craft?1."An airplane accelerates down a runway at 3.20m/s2 for 32.8s until it finally lifts off the ground. how long is the said runway? how long is the said runway?" From the problem, what is the most appropriate equation to be used? 2.Which describe the velocity of an object upward? a.The object moves in constant velocity for one meter b.The object adds one meter per second squared in its velocity every second c.The object changes its velocity to one meter per second at its highest point d.The object adds one meter per second in its velocity every second 3. which tells how fast an object is moving? a.30km at 40 northeast b.60 miles per hour in 4 hr c. 30 meters per second d. 30 meter per second squared1. 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?
- Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such plate has an average speed of 4.0 cm/year. (a) What distance does it move in 1 s at this speed? (b) What is its speed in kilometers per million years?A child is practicing for a BMX race. His speed remains constant as he goes counterclockwise around a level track with two nearly straight sections and two nearly semicircular sections, as shown in the aerial view of Figure CQ7.12. (a) What are the directions of his velocity at points A, B, and C? For each point, choose one: north, south, east, west, or nonexistent, (b) What are the directions of his acceleration at points A, B, and C? Figure CQ7.121) A student travels 10 miles east from his home to Ocean County College. However, his odometer reading goes up 15 miles. (a) What is his displacement? (b) What is the length that he traveled? (c) What do you assume happened to cause his displacement to be different than length traveled?
- 1. The boy walk 76 km east and run in the direction of 12 km north in 40 second. a. What is the boy's distance? b. What is the boy's displacement? c. What is the boy's speed? Formula speed distance/time d. What is the boy's velocity? Formula velocity displacement/time1. An object is at x = -10 m moving at a constant velocity of 10 m/s. What would be the position of the body after 10 seconds? 2. Two siblings, Kaeya and Diluc, decided to take a walk around Mondstadt, following its perimeter guarded by walls. For those who haven't seen Mondstadt, you can imagine it as a city of walls with beautiful German architecture. Let's roughly assume that the walls are encircling it in a perfect circle. Both Kaeya and Diluc started at the front of the huge city gate (marked at 0 degrees), and they walk separately, away from each other. Assuming that radius of the circular city of Mondstadt to be 500 m, and the constant walking speed of both siblings to be 0.5 m/s, how long until the siblings achieve the greatest separation distance between them? 3. Please refer to the following vectors:A = 6i + 2j - 3kB = 3i - j - 2kC = -i + j - 4kD = j - 3kE = -i + 2kF = -5kG = 2iH = -3jI = -4i +4j Find the projection of vector C on vector D. 4. You throw a glob of putty…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. A ball is dropped from the top of a 70m tall building. You are about to catch it from the ground, what is the velocity of the ball, when it reaches your hand 2m from the ground? Do you think you catch it with this velocity, why or why Not? 2. Compare the maximum height reached by the two balls thrown from the ground in different directions. The first ball (Ball A) was thrown vertically upward straight to the air with a velocity of 2m/s. While the second was thrown sideways with an angle of 70o with initial velocity of 2m/s. Which ball will reach the higher altitude? Explain your answer. Please include solutions.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 this1. The 5,000kg final stage of a spaceship ejects the 10,000kg second stage. Before ejection, the two stages together travel with a velocity of 200m/s. If after ejection the second stage travels at 50m/s opposite the direction of its initial motion, what is the velocity of the final stage?