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Engineering Mechanics

Engineering Mechanics
The velocity ratio of a first system of pulleys with 4 pulleys is

20
16
8
4

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Engineering Mechanics
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

h/(kG² + h²)
h²/(kG² + h²)
(kG² + h²)/h²
(kG² + h²)/h

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Engineering Mechanics
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

n²
2n - 1
2n
n

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Engineering Mechanics
A pendulum which executes one beat per second is known as

Torsional pendulum
Second's pendulum
Compound pendulum
Simple pendulum

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Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g cosθ
g tanθ
None of these
g sinθ

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Engineering Mechanics
Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the balls with velocity ‘v’ is made to strike the second ball. Both the balls after impact will move with a velocity

v/8
v/4
v
v/2

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