If a force of 5.0 N acted on a 0.50-kg block for a distance of7.0 m, what would

Question

If a force of 5.0 N acted on a 0.50-kg block for a distance of7.0 m, what would be the velocity of the block? ( assume the blockis initially at rest)_______m/s An object is dropped from a height of 13 m. At what heightwill its kinetic energy and its potential energy beequal?_________m A 4.0-kg rock is dropped from a height of 12.0 m. At whatheight is the rock's kinetic energy twice its potentialenergy?______m If a force of 5.0 N acted on a 0.50-kg block for a distance of7.0 m, what would be the velocity of the block? ( assume the blockis initially at rest)_______m/s An object is dropped from a height of 13 m. At what heightwill its kinetic energy and its potential energy beequal?_________m A 4.0-kg rock is dropped from a height of 12.0 m. At whatheight is the rock's kinetic energy twice its potentialenergy?______m

Explanation / Answer

Force F = 5 N

Mass m = 0.5 kg

Distance S = 7 m

Initial speed u = 0

Final speed v = ?

From work nergy theorem work = change in kinetic energy

                FS = ( 1/ 2) m[ v ^ 2- u ^ 2]

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