1. Some volcanoes eject red-hot rocks and lava rather than smoke and ash. Suppose a large rock is ejected from the volcano with a speed of 45.0 m/s and at an angle 45.0° above the horizontal, rock strikes the side of the volcano at an altitude 10.0 m lower than its starting point. What are the magnitude and direction of the rock's velocity at impact.
1. Some volcanoes eject red-hot rocks and lava rather than smoke and ash. Suppose a large rock is ejected from the volcano with a speed of 45.0 m/s and at an angle 45.0° above the horizontal, rock strikes the side of the volcano at an altitude 10.0 m lower than its starting point. What are the magnitude and direction of the rock's velocity at impact.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:1.
Some volcanoes eject red-hot rocks and
lava rather than smoke and ash. Suppose a
large rock is ejected from the volcano with
a speed of 45.0 m/s and at an angle 45.0°
above the horizontal, rock strikes the side
of the volcano at an altitude 10.0 m lower
than its starting point. What are the
magnitude and direction of the rock's
velocity at impact.
2.A rock is thrown horizontally off a cliff
100.0m high with a velocity of 15.0
m/s.What is the rock's velocity at the point
of impact?
3.suppose you win a football match in a
tournament and to celebrate your victory
you hit a ball into the stands at 30 m/s and
at an angle 45°above the horizontal.On its
way down, the ball is caught by a spectator
10 m above the point where the ball was
hit.What are the magnitude and direction of
the ball's velocity at impact?
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