.If a ball is rolled across level ground with an initial speed of 20 ft/s, and if the speed of the ball is decreasing at a rate of 6 ft/s2 due to friction, how far will the ball roll?
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.If a ball is rolled across level ground with an initial speed of 20 ft/s, and if the speed of the ball is decreasing at a rate of 6 ft/s2 due to friction, how far will the ball roll?
Given:
initial speed, u = 20 ft/s
finalspeed, v = 0
a = - 6 ft/s2
Formula used:
The third equation of motion is given by
v2 = u2 + 2as
where, u is the initial velocity, v is the final velocity, s is the distance, a is the acceleration.
Step by step
Solved in 3 steps
