Quiz No. 1 A. Multiple Choice: Choose the letter of the best answer. 1. If you throw a baseball straight up, what is its velocity at the highest point? a. 9.8 m/s? b. 9.8 m/s c. O m/s? d. 0 m/s 2. An object is projected horizontally from a cliff. The time it takes to hit the ground is more than if it was just dropped b. less than if it was just dropped c. the same amount of time than if it was just dropped d. impossible to determine а. 3. If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first? Shot Bullet b. Dropped Bullet c. Hit at Same Time d. None of these 4. What force acts in the y direction that causes an object to travel in a parabolic arc? a. Friction b. Gravity c. Tension d. No force acting 5. Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first? 5 m/s 45 а. А b. В c. Both objects hit the ground at the same time d. unable to determine with the given information
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.
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