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ESE ME 2019: Engineering Mechanics Quiz-1

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Question 1

Sum of magnitudes of two forces acting at a point is 24 N and magnitude of resultant is 16 N. If resultant is at 90 º with smaller force, find the approximate magnitude of forces?

Question 2

From the figure, find the moment about every coordinate axes of force exerted by wire at point C. If the force is   426i+710j-1065k

Question 3

In a race in the school, Ruchika who is runner A runs at certain distance due north and gives the flag to Ruhi who is runner B, who runs for similar distance in south of east direction. The figure below describes various options of two runner where displacement of A and B on adding will give a resultant R. Now which among the following option correctly describes the resultant?

Question 4

If m is the number of unknown member forces and c be the number of unknown components which is statically determinate with j being number of joints, then degree of internal indeterminacy will be:

Question 5

The ratio of tension on the tight side to that of the slack side in a flat belt drive is

Question 6

Motion analysis of a moving particles without taking into account the forces responsible for motion of a stone falling into water, parallel to wall of well is ;

Question 7

A block of mass m is placed on a surface with a vertical cross-section given by If coefficient of friction is 0.5, the maximum height above the ground at which block can be placed without slipping is

Question 8

A coin is thrown by a man at an angle of 30 ° above the ground level of height 2.7m with the horizontal velocity of 20m/s is cought by another man at a height of 0.7m above the ground. Determine the displacement of the coin travelled. (g=10m/s2) (in metres)

Question 9

A nail of mass 0.015 kg is driven into a fixed wooden block, Its initial speed is 25 m/s and it is brought to rest in 6 milliseconds. find the value of the force

Question 10

Assumption made in truss analysis
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