A jet plane is flying at an altitude of 28,000 feet when it begins to descend at a constant rate of 2,000 feet per minute. What is the altitude in feet after 135 seconds? 10,000 feet 23,500 feet 25,500 feet 17,000 feet None A man walks down the road for half an hour at an average speed of 3 kph. He waits 10 minutes for the tricycle, which brings him back to his starting point at 7:15 AM. If the man began his walks at 6:25 AM the same morning, what was the average speed of the tricycle? 6 kph 5 kph 9 kph 3 kph
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.
A jet plane is flying at an altitude of 28,000 feet when it begins to descend at a constant rate of 2,000 feet per minute. What is the altitude in feet after 135 seconds?
- 10,000 feet
- 23,500 feet
- 25,500 feet
- 17,000 feet
- None
A man walks down the road for half an hour at an average speed of 3 kph. He waits 10 minutes for the tricycle, which brings him back to his starting point at 7:15 AM. If the man began his walks at 6:25 AM the same morning, what was the average speed of the tricycle?
- 6 kph
- 5 kph
- 9 kph
- 3 kph
- None
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