A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 17 m long. The bowler hears the sound of the ball hitting the pins 3.20s after the ball is released from his hands. What is the speed of the ball? The speed of sound is 340 m/s. i.
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.
![A bowling ball traveling with constant speed hits the pins at the end of a bowling
lane 17 m long. The bowler hears the sound of the ball hitting the pins 3.20s after
the ball is released from his hands. What is the speed of the ball? The speed of sound
is 340 m/s.
ii.
i.
A car slows down uniformly from a speed of 30m/s to rest in 9s. How far did it
travel in that time?
ii.
A boat's speed in still water is vgw = 2.2 m/s. If the boat is to travel directly
across the river whose current is vws = 1.5 m/s,
e) Find the velocity (magnitude and direction) of the boat relative to the shore
f) If the river is 132m wide, how long will it take to cross the river?
River current
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