Last Updated On 01-06-2023 - By Jeesha Sara
A small ball of mass 
is attached with upper end of a uniform straight rod of equal mass 
and length 
The rod is held vertical over a smooth horizontal surface as shown in fig. When the system is released, the lower end slips freely and the systems falls down. Assuming the initial position of the lower end to be origin and initially rod to be along 
-axis as shown in fig., the equation of trajectory of point 
of the rod (
is at distance 
from the lower end)is
.png)
|
a) |
|
b) |
|
c) |
|
d) |
|
Question ID - 100141 :- A small ball of mass is attached with upper end of a uniform straight rod of equal mass and length The rod is held vertical over a smooth horizontal surface as shown in fig. When the system is released, the lower end slips freely and the systems falls down. Assuming the initial position of the lower end to be origin and initially rod to be along -axis as shown in fig., the equation of trajectory of point of the rod ( is at distance from the lower end)is
a)
b)
c)
d)
A small ball of mass is attached with upper end of a uniform straight rod of equal mass and length The rod is held vertical over a smooth horizontal surface as shown in fig. When the system is released, the lower end slips freely and the systems falls down. Assuming the initial position of the lower end to be origin and initially rod to be along -axis as shown in fig., the equation of trajectory of point of the rod ( is at distance from the lower end)is
|
a) |
|
b) |
|
c) |
|
d) |
|
(b)
Since the floor is smooth, therefore no horizontal force is acting on the system. Only three forces are acting on it, weight 
of the ball, weight 
of the rod and vertically upward reaction of the floor
.png)
Since the rod is released from rest and no horizontal force is acting on it, therefore centre of mass of the system will not displace horizontally; it means it will fall vertically downward
Since masses of the rod and ball are equal, therefore centre of mass ‘
’ is at mid-point of centre of the rod and the ball; it means at distance 
from the ball or 3/4 from the lower end
If at an instant the rod makes angle 
with the vertical, then point 
and the system will be as shown in the figure
Co-ordinates of the point 
are
Using 
we have
Next Question :
|
In concave mirror the object is placed beyond C. Then the nature and size of the image formed is |
|||
|
(a) |
Real, erect and diminished |
(b) |
Real, inverted and diminished |
|
(c) |
Virtual, erect and magnified |
(d) |
Real, inverted and magnified |
View Topper Answer
We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 10th maths guide, 10th science guide, 10th tamil guide, 10th social guide, 10th english guide, science 10th guide and also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.
