Applied Mechanics and Graphic Statics
Two shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is

350 m
375 m
400 m
425 m

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Applied Mechanics and Graphic Statics
A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first?

Both reach the bottom simultaneously with equal rotational energy at bottom
Sphere with greater rotational energy at bottom than cylinder
Cylinder with greater rotational energy at bottom than sphere
Sphere with lesser rotational energy at bottom than cylinder

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Applied Mechanics and Graphic Statics
Kinetic friction may be defined as

Ratio of limiting friction and normal reaction
Angle between normal reaction and resultant of normal reaction and limiting friction
Friction force acting when the body is just about to move
Friction force acting when the body is in motion

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