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Janelle stands at the window of a building 6.2 m above ground level. She throws her keys straight out of the window (horizontally) and hopes that her friend Rochelle, who is standing 10.4 m out from the base of the building, will catch them. Ignoring air resistance and using g = 10 m s2 for the acceleration due to gravity, find the speed at which Jamelle needs to throw her keys, correct to decimal place.

Janelle stands at the window of a building 6.2 m above ground level. She throws her keys straight out of the window (horizontally) and hopes that her friend Rochelle, who is standing 10.4 m out from the base of the building, will catch them. Ignoring air resistance and using g = 10 m s2 for the acceleration due to gravity, find the speed at which Jamelle needs to throw her keys, correct to decimal place.

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Janelle stands at the window of a building 6.2 m above ground level. She throws her keys straight out of the window (horizontally) and hopes that her friend Rochelle, who is standing 10.4 m out from the base of the building, will catch them. Ignoring air resistance and using g = 10 m s2 for the acceleration due to gravity, find the speed at which Jamelle needs to throw her keys, correct to 1 decimal place.
Transcribed Image Text:Janelle stands at the window of a building 6.2 m above ground level. She throws her keys straight out of the window (horizontally) and hopes that her friend Rochelle, who is standing 10.4 m out from the base of the building, will catch them. Ignoring air resistance and using g = 10 m s2 for the acceleration due to gravity, find the speed at which Jamelle needs to throw her keys, correct to 1 decimal place.
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