You throw a football straight up into the air with a speed of 12.2 m/s. How high does the ball go?

1 Answer
Junaid Mirza
May 9, 2018

#"7.59 m"#

Explanation:

Use equation of motion

#"v"^2 - "u"^2 = "2aS"#

Where

  • #"v ="# Velocity after displacement #"S"#
  • #"u ="# Initial velocity
  • #"a ="# Acceleration of object
  • #"S ="# Displacement covered

At maximum height velocity is zero

So,

#"S" = ("v"^2 - "u"^2)/("2a") = (("0 m/s")^2 - ("12.2 m/s")^2)/("2 × -9.8 m/s"^2) = "7.59 m"#

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