Guest

Please answer D3 and D4 questions in the image I have attached above.

Please answer D3 and D4 questions in the image I have attached above.

Question Image
Grade:11

4 Answers

Arun
25750 Points
6 years ago
Dear Piyush
D-3
I am getting my answer as 4 sec.
Let me know if this is correct, then I will post my solution.
Regards
Arun (askIITians forum expert)
Piyush Upadhyay
34 Points
6 years ago
Yes your answer is correct please post the solution as soon as possible and by the way thank you for helping me.
Bhavasagar
45 Points
6 years ago
Given, acceleration of boy w.r.t to rope. a=2.5m/s^2. Distance travelled by block w.r.t rope=10-(-10)=20. We know, s=ut+1/2at^2. u=0,s=20m,a=2.5m/s^2. 20=1/2(2.5)t^2. t=4s.
Bhavasagar
45 Points
6 years ago
D4)tension in ropeT=F=2mg. (Since tension in a string is same)Tension acting on block is 2T=4mg. From FBD of block,. 4mg-mg=ma. a=3g.

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free