PHYS 1111 Intro Physics I Mechanics Nguyen Spring 2015 Homework 02 Daniel Hernandez Due date Tue Jan 27 10 59 59 pm 2015 EST A ball is dropped from rest After T seconds the ball has fallen a distance d Relative to this location how much farther does it fall after another 3T seconds A 9d B 3d C 15d D 8d How long is the rocket in the air You are correct Your receipt no is 156 9278 A ball is thrown upward from the ground with an initial speed of 24 3 m s at the same instant a ball is dropped from a building 13 1 m high After how long will the balls be at the same height You are correct Your receipt no is 156 1547 You are correct Your receipt no is 156 7053 hrwc2p42 A startled armadillo leaps upward see the figure rising 0 524 m in 0 150 s A hot air balloon has just lifted off and is rising at the constant rate of 1 00 m s Suddenly one of the passengers realizes she has left her camera on the ground A friend picks it up and tosses it straight upward with an initial speed of 11 4 m s If the passenger is 3 00 m above her friend when the camera is tossed how much time does it take for the camera to reach her You are correct Your receipt no is 156 3660 How high is the passenger when the camera reaches her You are correct Your receipt no is 156 3795 Choose whether each of the following statements is true or false What was its initial speed You are correct Your receipt no is 156 9163 What is its speed at this height You are correct Your receipt no is 156 3602 How much higher does it go You are correct Your receipt no is 156 2477 A model rocket is launched straight upward with an initial speed of 48 3 m s It accelerates with a constant upward acceleration of 2 02 m s2 until its engines stop at an altitude of 145 m What is the maximum height reached by the rocket You are correct Your receipt no is 156 8679 How long after lift off does the rocket reach its maximum height You are correct Your receipt no is 156 1344 Choices True False A vector s component can never be larger than the magnitude of the vector It is possible for a component of a vector to be zero if the vector itself is not zero The magnitude of the sum of two vectors is always less than the sum of the magnitudes of the two vectors It is possible for a vector to be zero while a component of the vector is not zero You are correct Your receipt no is 156 9286 PHYS 1111 Intro Physics I Mechanics Nguyen Spring 2015 Homework 02 Daniel Hernandez P P At time t1 At time t2 hrw7c3p1 A wheel with a radius of 40 cm rolls without slipping along a horizontal floor see the figure At time t1 the dot P painted on the rim of the wheel is at the point of contact between the wheel and the floor At a later time t2 the wheel has rolled through one half of a revolution What is the magnitude of the displacement of P during this interval You are correct Your receipt no is 156 5112 Angle of the displacement of P during this interval You are correct Your receipt no is 156 3904 x component of the displacement of P during this interval You are correct Your receipt no is 156 8084 y component of the displacement of P during this interval You are correct Your receipt no is 156 3903 Printed from LON CAPA MSU Licensed under GNU General Public License
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