6. Two spheres, A and B, are horizontally from the top of a tower. Sphere A has a horizontal speed of 40. meters per second and sphere B has a horizontal speed of 20. meters per second. Which statement best describes the time required for the spheres to reach the ground and the horizontal distance they travel? [Neglect friction and assume the ground is level.] (4 th 2 F A) Both spheres hit the ground at the same time and at the same distance from the base of the tower. B) Both spheres hit the ground at the same time, but sphere A lands twice as far as sphere B from the base of the tower. C) Both spheres hit the ground at the same time, but sphere B lands twice as far as sphere A from the base of the tower. D) Sphere A hits the ground before sphere B, and sphere A lands twice as far as sphere B from the base of the tower 7. Equilibrium exists in a system where three forces are acting concurrently on an object. If the system includes a 5.0-newton force due north and a 2.0-newton force due south, the third force must be A) 7.0 N south C) 3.0 N south B) 7.0 N north D) 3.0 N north
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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