During the construction of a high-rise building, a worker accidently dropped his portable electric screwdriver from a height of 400 feet. After t seconds, the screwdriver had fallen a distance of s = 16t² feet. How long did it take the screwdriver to reach the ground? The answer for part a is 5. b. What was the average velocity of the screwdriver between the time it was dropped and the time it hit the ground? The answer for part b is -80. What was the velocity of the screwdriver at the time it hit the ground? The answer is а. с. -160.
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.
![During the construction of a high-rise building, a worker accidently dropped his portable electric
screwdriver from a height of 400 feet. After t seconds, the screwdriver had fallen a distance of
s = 16t² feet.
How long did it take the screwdriver to reach the ground? The answer for part a is 5.
b. What was the average velocity of the screwdriver between the time it was dropped and
the time it hit the ground? The answer for part b is -80.
What was the velocity of the screwdriver at the time it hit the ground? The answer is
а.
с.
-160.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77461b06-0772-4165-878f-b81200c01932%2F0d83b31d-de4f-432f-a8f4-78644d0e823c%2F4wolgnp.png&w=3840&q=75)
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