1. A rock is thrown off a cliff at an angle of 56° with respect to the horizontal. The cliff is 100 m high. The initial speed of the rock is 26 m/s. (a) Fill in the following: Enter to 2 significant figures Vo 26 Vox 15 = Voy = 21.6 m S m S m S (b) v remains the same durin (c) vy changes during the mot (d) In your notebook, draw a sketch of the problem. Select the direction along the along the vertical axis (y-axis) that is positive (upwards or downwards). Select the direction along the along the horizontal axis (x-axis) that is positive (left or right). Select an origin. Draw the vectors for V₁, Vox, Voy V, V, Vy, ax, ay. Label on your diagram the initial and final positions of the rock xo, Yo, and Xfr Yf. (e) How high above the edge of the cliff does the rock rise? Enter to 2 significant figures Ay= 2.2 (f) How far has it moved horizontally when it is at maximum altitude? m
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.
Throwing a Rock Off a Cliff at an Angle
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