EBK PHYSICS FOR SCIENTISTS AND ENGINEER
6th Edition
ISBN: 9781319321710
Author: Mosca
Publisher: VST
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EBK PHYSICS FOR SCIENTISTS AND ENGINEER
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- V, is the velocity of a particle moving along the x axis as shown. (a) If x = -2.0 m at 1 = 0.0 s, what are the positions of the particle at 1 = 1.0 s and 6.0 s? (b) What is the average velocity of the particle during the time interval t=0.0 s to t= 6.0 s? (c) What is the average acceleration of the particle during the time interval t=0.0 s to t= 6.0 s? (d) What are the acceleration of the particle at i = 1.0 s, 3.0 s and 6.0 s?arrow_forwardA particle moves from an initial position with coordinates x = -2.0 m, y = +3.0 m, to a final position with coordinates x = +5.0 m, y = +7.0 m in a time interval of 10 s. What is the magnitude of the average velocity for this displacement?arrow_forwardA particle moves along a horizontal line. Its position function is s(t) for t > 0. For each problem, find the velocity function v(t), the acceleration function a(t), the times t when the particle changes directions, the intervals of time when the particle is moving left and moving right, the times t when the acceleration is 0, and the intervals of time when the particle is slowing down and speeding up. s(1) = -r' + 15t? .3arrow_forward
- A clown juggle balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in the air, she runs to and from a table 5.5 m away at constant speed of 2.5 m/s, returning just in time to catch the falling ball. With what minimum initial speed must she throw the ball upward to accomplish the act?arrow_forwardSuppose the position vector for a particle is given as a function of time by r(t) = x(t)î + y(t)ĵ, with x(t) = at + b and y(t)=ct2 + d, where a = 2.00 m/s, b = 1.35 m, c = 0.115 m/s2, and d = 1.14 m. (a) Calculate the average velocity during the time interval from t = 1.85 s to t = 3.75 s. v = m/s (b) Determine the velocity at t = 1.85 s. v = m/s Determine the speed at t = 1.85 s.arrow_forwardSuppose the position vector for a particle is given as a function of time by r(t) = x(t)î + y(t)ĵ, with x(t) = at + b and y(t) = ct² + d, where a = 1.40 m/s, b = 1.50 m, c = 0.117 m/s2, and d = 1.12 m. (a) Calculate the average velocity during the time interval from t = 2.15 s to t = 4.10 s. v= 2.9i + (0.234t + 1.12)j m/s (b) Determine the velocity at t = 2.15 s. v = 2.9i + 1.57j m/s Determine the speed at t = 2.15 s. The correct answer is not zero. m/sarrow_forward
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