A brick is thrown in the downward direction from the top of a building with an initial velocity of 10 m/s and it reaches the ground in 4 seconds. If there is no air resistance, what should be the average velocity of the brick?

Question

Quizplus · Accepted Answer

This problem provides the initial velocity and flight time. To find the average velocity, we need to calculate the terminal velocity. d = displacement of the object (distance traveled) V_i = initial velocity V_t = terminal velocity V_a = average velocity t = time a = acceleration Step 1: Calculate terminal velocity Terminal velocity = Initial velocity + acceleration x time Vt = 10 m/s + 9.8 m/s²× 4 s Vt = 49.2 m/s Step 2: Calculate average velocity Average Velocity = (Initial Velocity + Terminal Velocity)/2 V_a = (49.2 + 10)/2 V_a = 29.6 m/s

A Brick Is Thrown in the Downward Direction from the Top