A small sphere of mass $m$ is dropped from a height. After it has fallen $100 m$ , it has attained its terminal velocity and continues to fall at that speed. Then the magnitude of work done.

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

by viscosity of air is lesser in first $100 m$ than in the second $100 m$

by buoyancy of air is in first $100 m$ is equal to that in the second $100 m$

by viscosity of air is greater in first $100 m$ than in the second $100 m$

by buoyancy of air is lesser in first $100 m$ than that in the second $100 m$

answer is A, B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Average viscous force over the first $100 m$ is lesser than that over second $100 m$ , as viscous force is proportional to $v$ . But buoyancy force of air is constant throughout.

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!