12. A collar in linkage moves in a straightline. Its motion is described by x = 2t² - 7t + 5, where x is trhe collarsposition in meters and t is in seconds. Determine the position x, in meters, of the collar when the velocity iszero.a.-1.12b. -0.92513. A 50-kg crate was hoisted vertically as shown. If the acceleration, a, was measured to be 1.25 m/s², what isthe tension T in newtons?a.376b. 409C.1.27d. 1.92a.4.9b. 9.6c.d.14. The packaging of an item is subjected to a drop test. If a 5-kg package was lifted to 1.2 m from the ground,stopped, and released, at what velocity, in kph, will it hit the ground? Acceleration due to gravity is 9.81m/s².479553C.d.1724

A collar in linkage moves in a straightline. Its motion is described by x = 2t² - 7t + 5, where x is trhe collars position in meters and t is in seconds. Determine the position x, in meters, of the collar when the velocity is zero. a. -1.12 b. -0.925 C. d. 1.27 1.92

A collar in linkage moves in a straightline. Its motion is described by x = 2t² - 7t + 5, where x is trhe collars position in meters and t is in seconds. Determine the position x, in meters, of the collar when the velocity is zero. a. -1.12 b. -0.925 C. d. 1.27 1.92

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

12. A collar in linkage moves in a straightline. Its motion is described by x = 2t² - 7t + 5, where x is trhe collars
position in meters and t is in seconds. Determine the position x, in meters, of the collar when the velocity is
zero.
a.
-1.12
b. -0.925
13. A 50-kg crate was hoisted vertically as shown. If the acceleration, a, was measured to be 1.25 m/s², what is
the tension T in newtons?
a.
376
b. 409
C.
1.27
d. 1.92
a.
4.9
b. 9.6
c.
d.
14. The packaging of an item is subjected to a drop test. If a 5-kg package was lifted to 1.2 m from the ground,
stopped, and released, at what velocity, in kph, will it hit the ground? Acceleration due to gravity is 9.81
m/s².
479
553
C.
d.
17
24

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