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CBSE Class 11-science Answered

A rubber cord catapult has a cross sectional area 1mn2 and total unstretched length 10cm. It is stretched to 12cm and then released to project a missile of mass 5.0g Taking Y for rubber-5x108 N/m2 Find the velocity of projection of the projectile 
Asked by nilesh | 06 Feb, 2016, 11:00: PM
answered-by-expert Expert Answer
In this case,
Answered by Yashvanti Jain | 08 Feb, 2016, 11:12: AM

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CBSE 11-science - Physics
assertion: young modulus for a perfectly plastic body is zero Reason:for a perfectly plastic body restoring. force is zero
Asked by desaipravinbhai63 | 28 Dec, 2023, 07:59: PM
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CBSE 11-science - Physics
A horizontal rod is supported at both the end sand loaded at the middle. if L is length and Y is young modulus then depression is directly proportional to
Asked by harshitajain5757 | 05 Dec, 2023, 12:45: AM
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CBSE 11-science - Physics
State Hook's law on what factors does the modulus of elasticity of a subtance depend?
Asked by souravkheto234 | 17 Jun, 2021, 12:13: PM
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CBSE 11-science - Physics
Is strain is dimensions less
Asked by Zubair8 | 30 Dec, 2019, 10:16: AM
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CBSE 11-science - Physics
The area of cross section of a wire and its length are 1mm^2 and 2mm respectively.how much will be the work done to increase its length by 0.1mm . Youngs modulus of material of the wire=2.0*10^11n/m^2
Asked by Duhlani001 | 14 Apr, 2019, 03:21: PM
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CBSE 11-science - Physics
a wire 1 mm diameter and 1 m long fixed at one end is stretched by 0.01 mm when a load of 10 kg is attached to its free end . calculate young's modulus of elasticity.
Asked by apetkar | 07 Mar, 2019, 08:23: AM
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CBSE 11-science - Physics
Define shear modulus and show that shear stress = shear modulus x theta (where theta is the angular displacement of cylindrical from the vertical position of the cylinder) .
Asked by anishakumari9454 | 02 Feb, 2019, 11:01: AM
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CBSE 11-science - Physics
(a)  Define Young's modulus of a material. (b)  Define Bulk modulus of a body.
Asked by Topperlearning User | 25 Jul, 2014, 08:52: AM
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CBSE 11-science - Physics
(a)  What do you mean by modulus of rigidity? (b)  Which of the following state of matter has the least volume elasticity: solid, liquid or gas?
Asked by Topperlearning User | 25 Jul, 2014, 08:54: AM
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CBSE 11-science - Physics
What is the ratio of SI units to the CGS units of the modulus of rigidity?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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