Physics

Physics, 06.10.2019 03:00, veronica25681

Examples of motion with high velocity and low acceleration

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Physics, 22.06.2019 01:10, twhalon72

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

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Physics, 11.07.2019 19:30, CatelynBGray

Whipple is confused about the connection between the velocity and acceleration of the tennis ball. he decides to compare the velocity of the ball and the acceleration of the ball at the apex of the ball's motion while varying the speed of the elevator. he runs the experiment for a wide range of positive speeds of the elevator and records the speed and acceleration of the ball at the top of its motion. what can whipple conclude from these data? the speed of the ball is always positive and the acceleration is always equal to −g at the instant the ball reaches the top of its motion. the speed of the ball and the acceleration are both zero when the ball reaches the top of its motion. the speed of the ball is always zero and the acceleration is always −g at the instant the ball reaches the top of its motion. the speed of the ball is always negative and the acceleration is always equal to −g at the instant the ball reaches the top of its motion.

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Physics, 15.10.2019 21:30, deboerzac4809

Which one of the following statements is true concerning an object executing simple harmonic motion? a) the objects velocity is never zerob) the objects acceleration in never zeroc) the objects velocity and acceleration are simultaneously zerod) the objects velocity is zero when its acceleration is a maximume) the objects maximum acceleration is equal to its maximum velocity

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Physics, 18.10.2019 06:40, cam6836

The graph shows the acceleration, velocity, and displacement of a marble attached to a metal spring that has been secured to a tabletop. the marble was pulled down to the floor and then released. which is true about the marble's motion? motion and forces a. when acceleration is at a minimum, displacement is also at a minimum. b. when acceleration is at a minimum, velocity is at a maximum. c. when velocity is zero, displacement is at a maximum. d. when velocity at a maximum, acceleration is also at a maximum.

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