chiki4
Answered

Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Discover a wealth of knowledge from experts across different disciplines on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

A stone is dropped from the height of 121m and reaches to the earth in 10 sec with an acceleration of 20m/s square find the initial velocity of the stone​

Sagot :

lucky75

question:-

  • A stone is dropped from the height of 121m and reaches to the earth in 10 sec with an acceleration of 20m/s square find the initial velocity of the stone

Given :-

  • Height = 121 m

  • Time = 10 sec

  • Acceleration = 20 m/s²

To Find :-

  • Initial Velocity

Solution :-

As we know that,

[tex]\boxed{ \sf \: {v}^{2} - {u}^{2} = 2as }[/tex]

  • V = Final Velocity
  • U = Initial Velocity
  • A = Acceleration
  • S = Distance

According to the question,

0² - u² = 2(20)(121)

0 - u² = 4840

-u² = 4840

-u = √4840

u = -69.5 m/s

Answer:-

The initial velocity of the stone is -69.5 m/S.

Thank you for trusting us with your questions. We're here to help you find accurate answers quickly and efficiently. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Your questions are important to us at Westonci.ca. Visit again for expert answers and reliable information.