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PhysicsQ&A LibraryYou’re at the top of a mountain, which slopes down at a 45 degree angle below the horizontal. You throw a pebble horizontally from the top of the slope, with an initial speed of 10 m/s. How much time does the pebble spend in free-fall before hitting the sloping ground? (Round to the nearest integer number of seconds.)Start your trial now! First week only $4.99!*arrow_forward*

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You’re at the top of a mountain, which slopes down at a 45 degree angle below the horizontal. You throw a pebble horizontally from the top of the slope, with an initial speed of 10 m/s. How much time does the pebble spend in free-fall before hitting the sloping ground? (Round to the nearest integer number of seconds.)

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