2. The position of an object is given by . The position of the object (in meters) when the object has traveled its maximum positive distance from the origin is closest to a. 14 b. 8 c. 5 d. 4 4. A ball is tossed into the air. As it returns to earth, its velocity and acceleration are respectively a. positive and positive b. positive and negative c. zero and negative d. negative and negative 6. A ball rolls off an 80 m high flat (horizontal) roof with an initial speed of 50 m/s. At what horizontal distance does the ball strike the ground (in meters) as measured from the edge of the roof. a. 1000 b. 200 c. 800 d. 800 7. An M1 = 10 kg block is connected to a second block of mass M2 = 20 kg by means of a cable. The system is pulled by a second cable with tension TC = 60 N. The tension T in the cable connecting the masses (in N) is a. 5 b. 10 c. 20 d. 30
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.
2. The position of an object is given by . The position of the object (in meters) when the object has traveled its maximum positive distance from the origin is closest to
a. 14 b. 8 c. 5 d. 4
4. A ball is tossed into the air. As it returns to earth, its velocity and acceleration are respectively
a. positive and positive b. positive and negative c. zero and negative d. negative and negative
6. A ball rolls off an 80 m high flat (horizontal) roof with an initial speed of 50 m/s. At what horizontal distance does the ball strike the ground (in meters) as measured from the edge of the roof.
- a. 1000 b. 200 c. 800 d. 800
7. An M1 = 10 kg block is connected to a second block of mass M2 = 20 kg by means of a cable. The system is pulled by a second cable with tension TC = 60 N. The tension T in the cable connecting the masses (in N) is
a. 5 b. 10 c. 20 d. 30
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