1. A scientist suggested that sending people to Mars using a 250-m long cannon would fire people in a space capsule using a speed of 11.10 km/s. What is the acceleration? Comparing to gravitational acceleration, what can you imply with the data?
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.
1. A scientist suggested that sending people to Mars using a 250-m long cannon would fire people in a space capsule using a speed of 11.10 km/s. What is the acceleration? Comparing to gravitational acceleration, what can you imply with the data?
2. A particle in a constant acceleration has a velocity of 11.20 cm/s in the positive x direction when its x-coordinate is 4.00 cm. If its x-coordinate 3.00s later is -8.00 cm, what is its acceleration (in m/s2)?
3. A boat with a velocity of 27 m/s approaches a marker 98 m ahead. Because of this, the pilot decelerates the boat with a constant acceleration of -2.80 m/s2.
(a) How long does it take the boat to reach the marker? Choose the smaller value for time for a quadratic equation.
(b) What is the velocity of the boat when it reaches the marker?
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