1. How much time does it take the helicopter to travel along one of the semi-circular portions of its path? A. 500 sec. В. 250 sec. C. 785 sec. D. 1571 sec. E 3.14 x 10' sec. 2. During its motion from point "1" to point "8", the helicopter's average speed is D. 4.00 m/s. A. 6.00 m/s. B. 8.00 m/s. С. 1.00 m/s. E. 2.00 m/s. 3. For the time interval during which the helicopter travels along the semi-circle from point "5" to point "7", the helicopter's displacement is equal to A. 1000 m. B. 500 m. с. (-1000 т)i. D. (-1000 m) ĵ. Е. (1000 m)1. 4. While the helicopter is traveling on the semi-circular portions of its path, the scalar x-component of the helicopter's velocity is equal to zero at the instant(s) when the helicopter is passing through A. only points “2" and "4" . B. points "2", "4", "5", and "7". C. only points "3" and "6". D. only point "3". E. The scalar x-component of the helicopter's velocity is never equal to zero.

1. How much time does it take the helicopter to travel along one of the semi-circular portions of its path? A. 500 sec. В. 250 sec. C. 785 sec. D. 1571 sec. E 3.14 x 10' sec. 2. During its motion from point "1" to point "8", the helicopter's average speed is D. 4.00 m/s. A. 6.00 m/s. B. 8.00 m/s. С. 1.00 m/s. E. 2.00 m/s. 3. For the time interval during which the helicopter travels along the semi-circle from point "5" to point "7", the helicopter's displacement is equal to A. 1000 m. B. 500 m. с. (-1000 т)i. D. (-1000 m) ĵ. Е. (1000 m)1. 4. While the helicopter is traveling on the semi-circular portions of its path, the scalar x-component of the helicopter's velocity is equal to zero at the instant(s) when the helicopter is passing through A. only points “2" and "4" . B. points "2", "4", "5", and "7". C. only points "3" and "6". D. only point "3". E. The scalar x-component of the helicopter's velocity is never equal to zero.

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Description: 1. How much time does it take the helicopter to travel along one of the semi-circular portions of its path?A. 500 sec.B. 250 sec.C. 785 sec.D. 1571 sec.E 3.14 x 10' sec.2. During its motion from point “1" to point "8", the helicopter's average speed

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Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

Topic Video

Question

1. How much time does it take the helicopter to travel along one of the semi-circular portions of its path?
A. 500 sec.
B. 250 sec.
C. 785 sec.
D. 1571 sec.
E 3.14 x 10' sec.
2. During its motion from point “1" to point "8", the helicopter's average speed is
D. 4.00 m/s.
А. 6.00 m/s.
B. 8.00 m/s.
С. 1.00 m/s.
E. 2.00 m/s.
3. For the time interval during which the helicopter travels along the semi-circle from point "5" to point "7",
the helicopter's displacement is equal to
A. 1000 m.
B. 500 m.
с. (-1000 т)i.
D. (-1000 m) ĵ.
E. (1000 m)î .
4. While the helicopter is traveling on the semi-circular portions of its path, the scalar x-component of the helicopter's velocity is equal
to zero at the instant(s) when the helicopter is passing through
C. only points "3" and "6" .
E. The scalar x-component of the helicopter's velocity is never equal to zero.
A. only points “2" and "4" .
B. points "2", "4", “5", and “7".
D. only point "“3".

A search and rescue helicopter travels at constant speed in a horizontal plane. The figure below shows a portion of the path traveled
by the helicopter, as viewed looking down from above. The helicopter's path includes three straight portions between points "1" and
"2", points "4" and "5", and points "7" and "8", each of which has a length of 4000 m, as shown in the figure. It takes the helicopter
2000 seconds to travel along each of these straight portions of its path. The semi-circular portions of the path (also shown in the
figure) have the same radius R=500m.
+y YNorth)
8.
4
4000 m
A semi-circle is one half of a circle.
East
6.

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