W.) A 1400-kgkg sports car (including the driver) crosses the rounded top of a hill (radiusradius = 88.0 mm ) at 16.0 m/sm/s . Determine the normal force exerted by the road on the car. FNcar=_________________number?           _________________units? Determine the normal force exerted by the car on the 75.0-kgkg driver. FNdriver=_______________number?              _____________units? Determine the car speed at which the normal force on the driver equals zero. V=_______________number?                ______________units?

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Q: 5 A helicopter is travelling horizontally at 20 m s at a height of 50 metres above a point P on hori...

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Q: F1 02 F2

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.