How long after release of the first stone did the two stones hit the water? (Round your answer to at least two decimal places.) s (b) What initial velocity must the second stone have had, given that they hit the water simultaneously? m/s (c) What was the velocity of each stone at the instant it hit the water? first stone m/s second stone m/s
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 mountain climber stands at the top of a 27.0-m cliff that overhangs a calm pool of water. She throws two stones vertically downward 1.00 s apart and observes that they cause a single splash. The first stone had an initial velocity of
(Indicate the direction with the sign of your answers.)
s
(b) What initial velocity must the second stone have had, given that they hit the water simultaneously?
m/s
(c) What was the velocity of each stone at the instant it hit the water?
| first stone | m/s |
| second stone | m/s |
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