Robot 2 E

What is kinematics?

Relates displacement, velocity, acceleration, and time without force.

What is kinetics?

Predicts motion based on forces and mass.

What defines rectilinear motion?

Motion along a straight line.

How does curvilinear motion differ from rectilinear motion?

Involves movement along a curved path.

What is average velocity?

Total displacement divided by total time.

What is instantaneous velocity?

Velocity at a specific moment in time.

What does a positive instantaneous acceleration indicate?

Increasing positive velocity or decreasing negative velocity.

What happens if acceleration is negative?

Velocity decreases if positive or increases if negative.

What is the relationship between acceleration and velocity?

Acceleration is the rate of change of velocity.

What is required to determine the motion of a particle?

Position must be known for all time.

What are the three classes of motion based on acceleration?

Functions of time, position, and velocity.

What does acceleration as a function of time imply?

Velocity changes over time based on a defined function.

How is velocity determined from acceleration as a function of position?

Integrate acceleration with respect to position.

What is the relationship between acceleration and velocity in the equation a = f(v)?

Acceleration depends on the current velocity.

How does the brake mechanism reduce gun recoil?

It decelerates the barrel by forcing oil through orifices.

What happens to velocity in uniform rectilinear motion?

Velocity remains constant while acceleration is zero.

What defines uniformly accelerated rectilinear motion?

Acceleration remains constant throughout the motion.

How do you calculate the relative position of particle B with respect to A?

Subtract the position of A from the position of B.

What is the formula for relative velocity of B with respect to A?

Relative velocity is the difference between their velocities.

What is the implication of constant acceleration on velocity?

Velocity changes linearly over time.

What condition must be met for measuring relative motion?

Time and displacement must be synchronized and aligned.

What does the equation x = x0 + vt represent?

It describes the position of a particle in uniform motion.

How do you determine the acceleration of a car given initial and final velocities?

Use the formula a = (v^2 - v0^2) / (2(x - x0)).