A mountaineer jumps off a ledge (with a height of 5m) to cross a crevasse with a gap of 2m. What was the mountaineer's horizontal velocity to clear the gap? (use g=10m/s/s) (answers are in m/s) *
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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?

Which two particles are found in the center of an atom

In which of the following is positive work done by a person on a suitcase