Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 5 (Q.No. 4)
4.
If the length of a cantilever carrying an isolated load at its free end is doubled, the deflection of the free end will increase by
Discussion:
15 comments Page 1 of 2.
Don Dai said:
9 years ago
More W & L, more deflection.
More B & D, less Deflection.
That's why 8 times.
More B & D, less Deflection.
That's why 8 times.
(2)
SUBHRA NANDI said:
10 years ago
No answer is wrong its will be ANS-A (8).
(1)
Vishal Amit Patil said:
6 years ago
@All.
Here, it is mentioned to double the load not length.
Here, it is mentioned to double the load not length.
(1)
Dhru said:
5 years ago
Wl^3/3EI upon W(2l^3) /3EI.
Solve then the answer will be 1/8.
Solve then the answer will be 1/8.
(1)
Shraddha said:
10 years ago
Answer: 8 times.
Deflection at the free end due to point load = Wl*L*L/3EI.
Put 2L in place of L, it becomes 8 times.
Deflection at the free end due to point load = Wl*L*L/3EI.
Put 2L in place of L, it becomes 8 times.
Ashish Gusain said:
9 years ago
Option B is wrong.
Deflection = Wl.l.l/3EI,
Given that L = 2l,
Then deflection = W.2l.2l.2l/EI,
=> 8x W.l.l.l/3EI.
So option A is right.
Deflection = Wl.l.l/3EI,
Given that L = 2l,
Then deflection = W.2l.2l.2l/EI,
=> 8x W.l.l.l/3EI.
So option A is right.
Shweta puri said:
9 years ago
Read the question carefully, they are not telling about length they said if the load at the free end is double it mean W = 2W. The deflection of the free end is WL^3/3EI when we put W = 2w it become1/2 which is not given in the answer but the right answer is 1/2.
Anni said:
9 years ago
@Shweta.
I think, your answer is wrong.
I think, your answer is wrong.
Baloch said:
9 years ago
It's not doubling the load, it's doubling the length.
L^3, 2L^3 = 8, And is C.
L^3, 2L^3 = 8, And is C.
Surjya said:
9 years ago
It will be option A i.e. 8.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers