The captain of a ship views the top of a lighthouse at an angle of 60" with the horizontal at an elevation of 6 meters above sea level. Five minutes later, the same captain of the ship views the top of the same lighthouse at an angle of 30" with the horizontal. Determine the speed of the ship if the lighthouse is known to be 50 meters above sea level. A. 0.265 m/sec B. 0.155 m/sec C. 0.169 m/sec D. 0.210 m/sec
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.
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The captain of a ship views the top of a lighthouse at an angle of 60" with the horizontal at an elevation of 6 meters above sea level. Five minutes later, the same captain of the ship views the top of the same lighthouse at an angle of 30" with the horizontal. Determine the speed of the ship if the lighthouse is known to be 50 meters above sea level.
A. 0.265 m/sec
B. 0.155 m/sec
C. 0.169 m/sec
D. 0.210 m/sec
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