A student throws a heavy red ball horizontally from a balcony of a tall building with an initial speed v0. At the same time, a second student drops a lighter blue ball from the same balcony. Neglecting air resistance, which statement is true?
(A) The blue ball reaches the ground first.
(B) The balls reach the ground at the same instant.
(C) The red ball reaches the ground first.
(D) Both balls hit the ground with the same speed. (E) None of the above statements is true.
Answers: 3
Physics, 21.06.2019 23:20
The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.
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Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
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Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
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A student throws a heavy red ball horizontally from a balcony of a tall building with an initial spe...
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