You drop a rock off a bridge. 1 second later, you drop a second rock off the bridge. Question A: Which of the following statements about their velocities is correct? 1. Both velocities increase at the same rate 2. The first rock's velocity increases faster than the second rock's 3. The second rock's velocity increases faster than the first rock's 4. Both rock's velocities stay constant Question B: In the 1 second after you dropped the first rock, how many meters did it fall? assume g = 9.8 m/s^2
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.
You drop a rock off a bridge. 1 second later, you drop a second rock off the bridge.
Question A: Which of the following statements about their velocities is correct?
1. Both velocities increase at the same rate
2. The first rock's velocity increases faster than the second rock's
3. The second rock's velocity increases faster than the first rock's
4. Both rock's velocities stay constant
Question B: In the 1 second after you dropped the first rock, how many meters did it fall? assume g = 9.8 m/s^2
We know acceleration due to gravity is 9.8 m/s^2 and is same for every object near surface :
and acceleration is the rate of change of velocity
So, The correct answer would be :
1. Both velocities increase at the same rate.
Step by step
Solved in 2 steps
