Understanding Velocity: Average vs. Instantaneous

What is the formula for calculating average velocity?

• Change in time divided by change in position

• Change in position divided by change in time

• Total distance traveled divided by total time

• Initial velocity plus final velocity divided by two

Why can't average velocity tell us the speed at a specific moment?

• It only considers the initial and final positions

• It averages out all variations in speed

• It assumes constant speed throughout the journey

• It requires knowledge of the exact path taken

What was Galileo's approach to studying instantaneous velocity?

• Calculating the average speed over a long distance

• Using a pendulum to measure time intervals

• Rolling a ball down a ramp and measuring distances

• Using a stopwatch to measure exact times

What challenge arises when trying to measure instantaneous velocity at a specific time?

• The object must be moving at a constant speed

• The object must be stationary to measure velocity

• The time interval must be zero, leading to undefined values

• The distance traveled must be known exactly

How did Galileo attempt to approximate instantaneous velocity?

• By decreasing the time intervals between measurements

• By measuring the total distance traveled

• By increasing the time intervals between measurements

• By using a different object each time