Free Fall Equations Class 9. The cotton ball falls after 4 s and iron ball falls after 7 s. Suggested for cbse, icse, state boards, igcse, gcse, upsc, and ssc examinations.
The expression for ‘g’ is written as `g=(gm)/r^2` since, the value of ‘g’ does not depend upon the mass or distance of an object, therefore, all objects fall over the earth with the same rate. Basket ball thrown in basket falls on ground after successful goal. Describe how the values of the position, velocity, and acceleration change during a free fall.
•y = vertical displacement [m]!
•v iy = initial vertical velocity [m/s]! Free fall class 9 physics. Answered oct 27, 2020 by eihaa (50.7k points) selected oct 28, 2020 by naaz. This document is highly rated by class 9 students and has been viewed 737 times.
