A rubber cord catapult has cross-sectional area25mmand initial length of rubber cord is 10c.Its is stretched to 5cm and then released toproject a missile of mass 5gm. TakingYubber = 5x108N/m² velocity of projectedmissile is :(1) 20ms -(2) 100ms(3) 250ms(4) 200ms)​

1 answer
Question:

A rubber cord catapult has cross-sectional area
25mmand initial length of rubber cord is 10c.
Its is stretched to 5cm and then released to
project a missile of mass 5gm. Taking
Yubber = 5x108N/m² velocity of projected
missile is :
(1) 20ms -
(2) 100ms
(3) 250ms
(4) 200ms)​

Answers

Potential energy stored in the rubber cord catault will be converted into kinetic energy of mass21​ mv 2 = 21​ LYAl 2​ where l=5×10 −2 m, A=25×10 −6 m 2 , L=10×10 −2 m, m=5×10 −3 kg⇒v= mLYAl 2​ ​ v= 5×10 −3 ×10×10 −25×10 8 ×25×10 −6 ×(5×10 −2 ) 2​ ​ v=250ms −1

Similar Solved Questions

1 answer

If 25 pencils cost $3.00, what is the cost of 15 pencil?

If 25 pencils cost $3.00, what is the cost of 15 pencil?...
2 answers

_______ are the ultimate cause of alleles. a. mutations b. karyotypes c. dna molecules d. none of the above

_______ are the ultimate cause of alleles. a. mutations b. karyotypes c. dna molecules d. none of the above...
1 answer

What were the reasons the colonists chose the location to build Jamestown?

What were the reasons the colonists chose the location to build Jamestown?...
2 answers

Bond formed by the sharing of electrons between atoms.

Bond formed by the sharing of electrons between atoms....
1 answer

Air at 600 kPa, 330 K enters a well-insulated, horizontal pipe having a diameter of 1.2 cm and exits at 120 kPa, 300 K. Applying the ideal gas model for air, determine at steady state (a) the inlet and exit velocities, each in m/s, (b) the mass flow rate, in kg/s, and (c) the rate of entropy production, in kW/K

air at 600 kPa, 330 K enters a well-insulated, horizontal pipe having a diameter of 1.2 cm and exits at 120 kPa, 300 K. Applying the ideal gas model for air, determine at steady state (a) the inlet and exit velocities, each in m/s, (b) the mass flow rate, in kg/s, and (c) the rate of entropy product...
1 answer

The length of Lila's bedroom is 5 yards longer than its width. Write an expression for the perimeter of the bedroom. (APR.1) A. 5x +4 B. 4x + 10 C. 10x + 4 D. 4x + 5

The length of Lila's bedroom is 5 yards longer than its width. Write an expression for the perimeter of the bedroom. (APR.1) A. 5x +4 B. 4x + 10 C. 10x + 4 D. 4x + 5...
1 answer

Did the period of the pendulum swing depend on the mass of the bob? On the length of the string? On the displacement? How does your data relate to the pendulum equation? You need not include your data tables and graphs, but you should explain your answer based on the information in your data tables and graphs.

Did the period of the pendulum swing depend on the mass of the bob? On the length of the string? On the displacement? How does your data relate to the pendulum equation? You need not include your data tables and graphs, but you should explain your answer based on the information in your data tables ...
1 answer

IF UR AN EXPERT IN MATH CAN U PLSPLSPLSPLSPLSPLS ANSWER THIS QUESTION, I WILL GIVE BRAINLIEST 5 STARS AND A THANKS :C DUE TODAY!!

IF UR AN EXPERT IN MATH CAN U PLSPLSPLSPLSPLSPLS ANSWER THIS QUESTION, I WILL GIVE BRAINLIEST 5 STARS AND A THANKS :C DUE TODAY!!...
1 answer

Questions 3-5 please and thank you

Questions 3-5 please and thank you...
2 answers

How do you convert 258/300 into a decimal

How do you convert 258/300 into a decimal...
2 answers

Which is a product of photosynthesis? carbon dioxide sugar water sunlight

Which is a product of photosynthesis? carbon dioxide sugar water sunlight...
1 answer

How do I find the mass of 250.0mL

how do I find the mass of 250.0mL...
1 answer

1. A book has x pages. How many pages are in the book if Maria read 45 pages of a book on Monday, 1/2 the book on Tuesday, and the remaining 72 pages on Wednesday? * (10 Points) 117 pages 234 pages 351 pages 468 pages

1. A book has x pages. How many pages are in the book if Maria read 45 pages of a book on Monday, 1/2 the book on Tuesday, and the remaining 72 pages on Wednesday? * (10 Points) 117 pages 234 pages 351 pages 468 pages...
1 answer

Find the value of ‘A’ in the set of supplementary angles

Find the value of ‘A’ in the set of supplementary angles...
1 answer

Orion Flour Mills purchased a new machine and made the following expenditures: Purchase price $65,000 Sales tax 5,500 Shipment of machine 900 Insurance on the machine for the first year 600 Installation of machine 1,800 The machine, including sales tax, was purchased on account, with payment due in 30 days. The other expenditures listed above were paid in cash. Required: Record the above expenditures for the new machine.

Orion Flour Mills purchased a new machine and made the following expenditures: Purchase price $65,000 Sales tax 5,500 Shipment of machine 900 Insurance on the machine for the first year 600 Installation of machine 1,800 The machine, including sales tax, was purchased on account, with paym...
1 answer

A survey asks the question: "Are you in favor of holding the Olympics in Toronto, even though your taxes may increase? A.question wording B.undercoverage C.response D.nonresponse E.voluntary response

A survey asks the question: "Are you in favor of holding the Olympics in Toronto, even though your taxes may increase? A.question wording B.undercoverage C.response D.nonresponse E.voluntary response...
1 answer

Maths question that I need help with. I honestly dont understand a thing about prooving.

Maths question that I need help with. I honestly dont understand a thing about prooving....
1 answer

Find the equation of the exponential function represented by the table ​

Find the equation of the exponential function represented by the table ​...
1 answer

When does a frog lay eggs in a small pond, what happens to the population of frogs in the pond?

When does a frog lay eggs in a small pond, what happens to the population of frogs in the pond?...

-- 0.043166--