A rubber cord has a cross -sectional are...

A rubber cord has a cross -sectional area `1 mm^(2)`and total unstretched length`10.0cm`. It is streched to `12.0 cm` and then released to project a missile of mass 5.0 g.Taking young's modulus Y for rubber as `5.0xx10^(8) N//m^(2)`.Calculate the velocity of projection .

`0.2 m//s`

`2 m//s`

`20 m//s`

`200m//s`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ELASTICITY
TARGET PUBLICATION|Exercise Competitive Thinking|69 Videos
ELASTICITY
TARGET PUBLICATION|Exercise Evaluation test|14 Videos
ELASTICITY
TARGET PUBLICATION|Exercise Evaluation test|14 Videos
CURRENT ELECTRICITY
TARGET PUBLICATION|Exercise Evaluation Test|6 Videos
ELECTROMAGNETIC INDUCTION
TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

Similar Questions

Explore conceptually related problems

The rubber cord of a catapult has cross-section area 1 mm^(2) and a total unstretched length 10 cm. It is stretched to 12 cm and then released to project a partical of mass 5 g. Calculate the velocity of projection (Y for rubber is 5xx10^(8)N//m^(2) )

A rubber cord of cross sectional area 1mm^(2) and unstretched length 10cm is stretched to 12cm and then released to project a stone of mass 5 gram. If Y for rubber = 5xx10^(8) N//m^(2) , then the tension in the rubber cord is

A rubber cord catapult has cross-sectional area 25 mm^(2) and initial length of rubber cord is 10 cm . It is stretched to 5 cm . And then released to protect a missle of mass 5 gm Taking Y_("nibber")=5xx10^(7)N//m^(2) velocity of projected missle is

A rubber cord of cross-sectional area 2 cm^(2) has a length of 1 m. When a tensile force of 10 N is applied, the length of the cord increases by 1 cm. What is the Young's modulus of rubber ?

A steel wire 4.0 m in length is stretched through 2.0 mm. The cross-sectional area of the wire is 2.0 mm^(2) . If young's modulus of steel is 2.0 xx 10^(11) Nm^(-2) , then find the energy density of wire.

A brass rod of cross-sectional area 1cm^(2) and length 0.2 m is compressed lengthwise by a weight of 5 kg. if young's modulus of elasticity of brass is 1xx10^(11)N//m^(2) and g=10m//sec^(2) then increase in the energy of the rod will be

A brass rod of cross-sectional area 1cm^(2) and length 0.2 cm is compressed lengthwise by a weight of 5 kg . If Young's modulus of elasticity of brass is 1 xx 10^(11) N//m^(2) and g=10 m//sec^(2) , then increase in the energy of the rod will be

A steel wire 4.0m in length is stretched through 2.0mm .The cross -sectional area of the wire is 2.0 mm^(2) .If young's modulus of steel is 2.0xx10^(11) N//m^(2) (a) the enrgy density of wire, (b) the elastic potential energy stored in the wire.

A brass rod of cross-sectional 1 cm^(2) and length 0.2 m is compresssed lengthwire by a weight of 5kg. The young's modulus of elasticity of brass is 1 xx 10^(11) N//m^(2) and g = 10m//sec^(2) . What is the increases in the energy of the rod ?

TARGET PUBLICATION-ELASTICITY-Critical Thinking

A uniform rod of cross-section 4 mm^(2) is heated from 0^(@)C " to "1...
Text Solution
|
A steel of Xkg-wt//m^(2) is applied to a wire whose Young's modulus is...
Text Solution
|
A steel wire 2 mm in diameter is just stretched between two fixed poin...
Text Solution
|
The ratio of lengths of two rods A and B of same material is 1:2 and t...
Text Solution
|
The backlash error can be elimintated in Searle's experiment, by rotat...
Text Solution
|
To lift a load by a metallic rope, its radius of cross-section should ...
Text Solution
|
Which of the following relations is incorrect for the sag(delta) of be...
Text Solution
|
A beam of metal supported at the two edges is loaded at the centre. Th...
Text Solution
|
A wire fixed at the upper end stretches by length l by applying a forc...
Text Solution
|
On stretching a wire, the elastic energy stored pre unit volume is
Text Solution
|
If one end of a wire is fixed with a rigid support and the other end i...
Text Solution
|
A wire of length L and cross sectional area A is made of a material of...
Text Solution
|
A metal rod of Young's modulus 2xx10^(10)Nm^(-2) undergoes an elastic ...
Text Solution
|
If the volume of the given mass of a gas is increased four times, the ...
Text Solution
|
A steel wire of length 5 m and area of cross-section 4 mm^(2) is stret...
Text Solution
|
One end of a long mettalic wire of length L is tied to the ceiling. T...
Text Solution
|
A rubber cord has a cross -sectional area 1 mm^(2)and total unstretche...
Text Solution
|
The average depth of indian Ocean is about 3000 m. The fractional comp...
Text Solution
|
Forces of 100 N each are applied in opposite direction on the upper an...
Text Solution
|
Assertion: If length of a rod is doubled, the breaking load remains th...
Text Solution
|