A rocket goes from 0 m/s to 40 meters per second squared in 8 s. A) after 41s, what is it's final speed in m/s? B) What length of time has passed for the rocket to reach a speed of 7100 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 rocket goes from 0 m/s to 40 meters per second squared in 8 s.
A) after 41s, what is it's final speed in m/s?
B) What length of time has passed for the rocket to reach a speed of 7100 m/s?
Let constant acceleration of rocket is a.
Given: Initial velocity u=0
Using v=u+at:
After 8 seconds velocity is 40 m/s.
So, t=8 seconds and v=40 m/s
40=0+a×8
a=
Now velocity after 41 seconds will be:
v=u+at
v=0+5×41=205 m/s
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