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Energy Transformation

What will be ...

Question

What will be the effect if a sling of a rubber catapult is stretched?

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Solution

Dear student,
When the sling of a rubber catapult is stretched it gains potential energy but after it is released the potential energy get converted into kinetic energy.
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Similar questions

Q. State the effect produced by a force in the following cases :
(a) The sling of a rubber catapult is stretched
(b) A man pushes a heavy cart
(c) A player uses his stick to deflect the ball .
(d) A cyclist applies brakes
(e) A spring is compressed.

What type of energy is possessed :

(a) by the stretched rubber strings of a catapult ?

(b) by the piece of stone which is thrown away on releasinig the stretched rubber strings of catapult ?

By stretching the rubber strings of a catapult we store .......... energy in it.

Q. A stone of mass 'm' s projected from a rubber catapult of length 'l' and cross-sectional area A stretched by an amount 'e'. If Y be the young's modulus of rubber then the velocity of projection of stone?

Q. The rubber cord of a catapult has cross-section area

2 m m^{2}

and a total unstretched length

15 c m

. It is stretched to

18 c m

and then released to project a particle of mass

3 g

. Calculate the velocity of projection if

Y

8 \times 10^{8} N / m^{2}

.

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