Problem: 21(of 22)Do not round intermediate answers. Give your final answer(s) to three decimal places. Check your units.Two identical hockey pucks moving with initial velocities vд and vg collide as shown. If the coefficient of restitution is e = 0.4,determine the velocity (magnitude and direction) of each puck just after impact.VA = 15 m/secAB32°-xVB = 4 m/secv' of A =v' of B =m/sec°m/secE oX XX

Answered: Problem: 21 (of 22) Do not round…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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It was observed that a tennis ball when served horizontally 7.5 ft above the ground strikes the smooth ground at B 20 ft away. Determine the initial velocity va of the ball and the velocity ve (and 6) of the ball just after it strikes the court at B. Take e= 0.7. 7.5 201 1) Using projectile motion analysis, determine va and the speed of the ball just before hitting the ground. 2) Apply the coefficient of restitution in the y-direction of motion, and the conservation of momentum in the x-direction of motion. 3) Find e using the two components of va.
Activity 5. Two cars start at the intersection of two roads which make an angle of 60° with each other. Car A accelerates at 0.9 m/s? and car B has an acceleration of 0.75 m/s?. Determine the relative displacement and the velocity of the two Cars 20 seconds after leaving the intersection. (Ans. relative displacement (s) of the two cars =167.03m) (Ans. relative velocity (v) of the two cars=16.70m) (Ans. relative acceleration (a) of the two cars=0.835m/sec?) 2 0.9 m/sec A/60 0.75 m/sec
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1. Use calculus to solve the equation dv/dt = g - (c/m)v where the initial velocity is nonzero. 2. a parachutist of mass 68.1 kgs, jumps out of a stationary hot air balloon. Use the derived equation to cpmpute the velocity prior to opening the chute. The drag coefficient is equal to 12.5 kg/ s. perform using numerical solution, employ a step size 0f 0.5 second interval.
A vertical cylindrical tank 3 m in diameter has a circular orifice 10 cm in diameter on the vertical side at its bottom. The tank is filled with water such that the head over the orifice is 7 m. If Cᵥ = 0.98 and C꜀ = 0.61, *determine (a) the interval of time for the velocity of the jet issuing at the orifice to change from 10 m/s to 7 m/s. Assume that the velocity of approach is negligible. *what is the head when the velocity is (b) 10 m/s? Assume that the velocity of approach is negligible..... *what is the head when the velocity is (c) 7 m/s? Assume that the velocity of approach is negligible....
Current Attempt in Progress A ball with mass m kg is thrown upward with initial velocity 15 m/s from the roof of a building 19 m high. Neglect air resistance. Use g = 9.8 m/s². Round your answers to one decimal place. (a) Find the maximum height above the ground that the ball reaches. Xmax = meters (b) Assuming that the ball misses the building on the way down, find the time that it hits the ground. tend = i S eTextbook and Media Save for Later Submit Answer Using multiple attempts will impact your score. 10% sco duction after attempt 1 Attempts: 0 of 3 used
The velocity for an oil flow is defined by V= (0.5y³i+2j) m/s, where y is in meters. Part A What is the equation of the streamline that passes through point (1 m, 3 m)? Express your answer in meters in terms of z. IG] ΑΣΦ. 11 Ivec y = 12x + 15 Submit X Incorrect; Try Again; 9 attempts remaining Part B Previous Answers Request Answer z.y= Submit If a particle is at this point when t=0, at what point is it located when t-3.287 Express your answers in meters to three significant figures separated by a comma. VAX i vec ? Request Answer m ? m
Sample problem 3. Starting from rest, gear A rotates with an angular acceleration of αA = 0.2t rad/s² (clockwise). After 10 seconds, calculate: a) acceleration of H b) velocity of H c) change in height of H 50 mm www. 200 mm B 100 mm H
A commercial airliner with four jet engines, each producing 76 kN of forward thrust, is in a steady, level cruise when engine number 3 suddenly fails. Determine the distance d (measured up or down on the figure) to the resultant of the three remaining engine thrust vectors. Treat this as a two-dimensional problem. The distance dis positive if above the center line of the airplane, negative if below. 76 kN 7.7 m 3 12.9 m 12.9 m 76 kN 7.7 m 76 kN 1 Answer:d = i E
11. A 4 kg block rests on a smooth surface and is acted upon by force F, as shown in the figure. What is the value of the force F if the block accelerates at 15 m/s?? * O e. 147.15 N O c. 52.45 N O a. 3.75 N O b. 39.24 N d. 60. 0N
4. The boat's position during the interval of time from t = 2s to t = 10 s is given by s = 4t + 1.6t-0.08t m. a. Determine the boat's velocity and acceleration at t = 4 s. b. What is the boat's maximum velocity during this interval of time and when does it occur? c. Graph the position, velocity and acceleration from t= 0 to t = 10 seconds.

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