Chat with tutor

Ask Questions, Get Answers

Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Laws of Motion

Ten one rupee coins are put on top of each other on a table. Each coin has mass 'm' kg. What is the reaction of 6th coin counted from bottom on the 7th coin counted from bottom

\[(a)\;4 \;mg \quad (b)\;5\;mg \quad (c)\;6\;mg \quad (d)\;7mg \]

1 Answer

The sixth coin from bottom is 5th coin from top.Total Force on 5th coin from the top is $4mg$ => reaction force on the 7th coin from bottom or 4th from the top is also $4mg$
Hence a is the correct answer. 
Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.