22 - A marble is thrown upwards from the ground. Since the +y axis is selected in the upward direction, regarding this ball, I. Its acceleration is +g while going up. II. Its acceleration at maximum height is zero. III. Its acceleration during motion is -g. Which of the statements are true? a) I and II B) II and III NS) only III D) only II TO) only I
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.
22 - A marble is thrown upwards from the ground. Since the +y axis is selected in the upward direction, regarding this ball,
I. Its acceleration is +g while going up.
II. Its acceleration at maximum height is zero.
III. Its acceleration during motion is -g.
Which of the statements are true?
a)
I and II
B)
II and III
NS)
only III
D)
only II
TO)
only I
Given that:
The upward direction is +y.
Then the downward direction will be -y.
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