Find coefficient of kinetic friction between crate and floor

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Reference no: EM1346199

Q. Suppose that you hear a clap of thunder 18.4 s after seeing the associated lightning stroke. The speed of sound waves in air is 343 m/s and the speed of light in air is 3.00 108 m/s. How far are you from the lightning stroke?

Q. A factory worker pushes a 28.4 kg crate a distance of 4.5m along a level floor at constant velocity by pushing downward at an angle of 28 degree below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.

Reference no: EM1346199

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