Physics

Physics

Problem

A toy car drives straight off the end of a level table that is 0.75 m above the floor. Neglecting air resistance and taking g=9.8 m/s2g = 9.8\,\text{m/s}^2, calculate the time interval between the car leaving the table and striking the floor.
Intuitive explanation

This is a vertical free-fall problem where horizontal motion is irrelevant—only gravity matters for the vertical direction. The car leaves the table with zero vertical velocity and falls under constant acceleration gg. Use the kinematic equation Δy=v0yt+12gt2\Delta y = v_{0y}t + \frac{1}{2}gt^2 with your known height and initial vertical velocity to find how long the fall takes.

Intuitive explanation

This is a vertical free-fall problem where horizontal motion is irrelevant—only gravity matters for the vertical direction. The car leaves the table with zero vertical velocity and falls under constant acceleration gg. Use the kinematic equation Δy=v0yt+12gt2\Delta y = v_{0y}t + \frac{1}{2}gt^2 with your known height and initial vertical velocity to find how long the fall takes.

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