3. An emergency flare is fixed upward from a small boat. The flight of the flare can be modelled by the function h(t) 5t² + 40t + 4 where h(t) is the height of the flare above the ground in metres and 't' is the time in seconds since the flare was fired. 17 =I a) Will the flare reach a height of 82m? b) For how long will the flare be at a height of 20m or above?
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.
![3. An emergency flare is fixed upward from a small boat. The flight of the flare can be modelled by the
function h(t)
5t²
+ 40t + 4 where h(t) is the height of the flare above the ground in metres and 't' is the
time in seconds since the flare was fired.
17
=-
a) Will the flare reach a height of 82m?
b) For how long will the flare be at a height of
20m or above?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa69f0343-7cdb-453a-a46b-d89d93504730%2F507e2692-0d6b-42f9-8033-dcadbaef7ed6%2F2l9b0j9_processed.jpeg&w=3840&q=75)
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