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Engineering
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26 Sep 2019

What is the value of the velocity of a football when it attains its maximum height?

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Keith Leannon
Keith LeannonLv2
14 Jun 2019
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Related questions

Identify two true statements about projectiles among the following

  1. The horizontal component of velocity always remains constant during projectile

  2. The vertical component of velocity remains constant during projectile

  3. The vertical component of velocity changes due to the downward gravity

  4. The kinetic energy becomes zero at maximum height

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Among the following statements, which statement finds the logical consequence of the second law of thermodynamics?

  1. This law states that the entropy of an isolated system always increases or equal to zero but can never decrease

  2. This law is a relationship between the energy and the internal energy of a system

  3. This law states that entropy attains a constant value at absolute zero temperature

  4. This law states enthalpy of a closed system is a point function

A ball is thrown into the air with an initial upward velocity of 40 feet/seconds. If the height is given by the function h = 16 t2- 20 t where ‘t’ is the time in seconds then find out the time for the ball to hit the ground.

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