Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

A ball tied to a string of length R is given a speed V, when its hanging vertically. At some point B during its circular motion, the string gets slacked & after that the body passes through its initial point.

A ball tied to a string of length R is given a speed V, when its hanging vertically. At some point B during its circular motion, the string gets slacked & after that the body passes through its initial point.

Question Image
Grade:11

1 Answers

Shadow
27 Points
one month ago
In vcm a string slack at 131 °  approx
So 90+x is equal to 131
Now x is equal to 31approx
So option A 30 is correct
 
 
If we use tension formula 
Putting angle 130 degree 
0=mv2/l -2mg+3mgcos130°
We will get velocity 
 
That is option c
 
 
 
 
And at last
If we use
This formula
 
 
Now if we use v sqare equal to u square minus 2gr(1-cos131 )
We will got the answer
Option a
 
 

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free