First slide
Instantaneous acceleration
Question

A stone is dropped from the top of a multistoryed building. If it crosses 2 floors in the first second of its free fall, the number of floors it can cross in 4th second of its fall is

Easy
Solution

12g(2×11)=2 12g(81)=x Solving x = 14

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App