2. A car at the initial speed of 5 m/s is being uniformly accelerated to a speed of 15 m/s for 5 seconds. Find (a) the acceleration magnitude, (b) the distance the car has travelled during the 5 second period. 3. An object is freely falling from the top of 120 m building, Find (a) the final speed when it reaches the ground, (b) Find the time will it take to fall from the top of the building to the ground. Hollol 4. The apparent weight of a person in an elevator being accelerated upward at a constant acceleration will be (a) smaller than that of his normal weight W= mg (b) equal to his normal weight W = mg, (c) greater than his normal weight W = mg

2. A car at the initial speed of 5 m/s is being uniformly accelerated to a speed of 15 m/s for 5 seconds. Find (a) the acceleration magnitude, (b) the distance the car has travelled during the 5 second period. 3. An object is freely falling from the top of 120 m building, Find (a) the final speed when it reaches the ground, (b) Find the time will it take to fall from the top of the building to the ground. Hollol 4. The apparent weight of a person in an elevator being accelerated upward at a constant acceleration will be (a) smaller than that of his normal weight W= mg (b) equal to his normal weight W = mg, (c) greater than his normal weight W = mg

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 2.81CP: A blue car of length 4.52 m is moving north on a roadway (hat intersects another perpendicular...

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I am having trouble with a 3d motion problem. The problem is as follosw, "At t = 0, a particle moving in the xy plane with constant acceleration has a velocity of i = (3.00 i - 2.00 j) m/s and is at the origin. At t = 2.00 s, the particle's velocity is = (7.00 i + 8.20 j) m/s. (Use the following as necessary: t. Round your coefficients to two decimal places.)" The problem asks me to find acceleration of the particle at any time t and to find its coordinates at any time t. Thanks for the help
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