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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
The velocity of a body fallen from height ‘h’, on reaching the ground is given by

v = 2gh²
v = √(2gh)
v = 1/√(2gh)
v = 2gh

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Applied Mechanics and Graphic Statics
A system of coplanar forces is in equilibrium when

Force polygon closes
Both force polygon" and funicular polygon close
All the forces are concurrent
Funicular polygon closes

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Applied Mechanics and Graphic Statics
M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

π/32 (D⁴ × d⁴)
π/32 (D⁴ + d⁴)
π/64 (D⁴ + d⁴)
π/32 (D⁴ - d⁴)

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Applied Mechanics and Graphic Statics
The intrinsic equation of catenary is

S = c tan ψ
y = c cosh ψ
y = c cosh x/c
y = c sinh ψ

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Applied Mechanics and Graphic Statics
A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is

43894
43895
43954
43926

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Applied Mechanics and Graphic Statics
Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

None of these
5 m/sec
10 m/sec
Zero

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