A small mailbag is released from a helicopter that is descending steadily at 1.67 m/s. (a) After 4.00 s, what is the speed of the mailbag? V = m/s (b) How far is it below the helicopter? d = m (c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 1.67 m/s? V = m/s d =
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.
there are three equatio of motion
v = u + at
v2 - u2 = 2as
s = ut + 0.5 gt2
here u = initial velocity
v = final velocity
a = acceleration of body
t = time
s = displacement or of body
acceleration due to gravity is given by g = 9.8 m/s2 and is in downward direction
if body has constant speed v then distance moved by body in t sec is d
d = vt
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