0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A uniform rod AB mass m= 1.12 kg and length l= 100 cm is placed on a sharp support O such that AO = a = 40 cm and OB = b = 60 cm. To keep the rod horizontal, its end A is tied with a thread. Calculate reaction of support O on the rod when the thread is burnt. ( g 10 ms1)
867511_09cbf0dd318049f3bd005d71ae2aa259.png
  1. 40 N
  2. 10 N
  3. 15.5 N
  4. 20 N

A
10 N
B
20 N
C
40 N
D
15.5 N
Solution
Verified by Toppr

Was this answer helpful?
1
Similar Questions
Q1
A uniform rod AB mass m= 1.12 kg and length l= 100 cm is placed on a sharp support O such that AO = a = 40 cm and OB = b = 60 cm. To keep the rod horizontal, its end A is tied with a thread. Calculate reaction of support O on the rod when the thread is burnt. ( g 10 ms1)
867511_09cbf0dd318049f3bd005d71ae2aa259.png
View Solution
Q2
A uniform rod AB of mass m=1.12kg and length l=100cm is placed on a sharp support O such that AO=a=40cm and OB=b=60cm. To keep the rod horizontal, its end A is tied with a thread, Calculate reaction of support O on the rod when the thread is burnt. (g=10ms2)
1269919_a29f0a769a0f4b1eb5f97bcbf476451e.png
View Solution
Q3
A uniform rod AB of mass 2kg and length 1m is placed on a sharp support O such that AO=0.4 m and OB=0.6 m. A spring of force constant k=600 N/m is attached to end B. To keep the rod horizontal, its end A is tied with a thread such that spring is elongated by 1 cm. If reaction of support O on the rod when thread is burnt is R, then the value of $$\dfrac { R }{ 10 } $$ is:

View Solution
Q4
A wheel of radius R=10cm and moment of inertial i=0.05kgm2 is rotating about a fixed horizontal axis O with angular velocity ω=10rads1. A uniform rigid rod of mass m=3kg and length l=50cm is hinged at one end A such that it can rotate about end A in a vertical plane. End B of the rod is tied with a thread as shown in fig such that the rod is horizontal and is just in contact with the surface of rotating wheel. Horizontal distance between axis of rotation O of cylinder and A is equal to a=3cm
157392.jpg
View Solution
Q5
A uniform horizontal rod of length 40 cm and mass 1.2 kg is supported by two identical wires as shown in the figure. Where should a mass of 4.8 kg be placed on the rod from the left end (in cm) so that the same tuning fork may excite the wire on left into its fundamental vibrations and that on right into its first overtone? Take G=10 m/s2.
768335_9f1fb0e53509445e9a1eed41dc6c0302.png
View Solution