A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is

Applied Mechanics and Graphic Statics
A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is

1.25 m/sec²

0.5 m/sec²

1.00 m/sec²

0.75 m/sec²

1.25 m/sec²

0.5 m/sec²

1.00 m/sec²

0.75 m/sec²

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Applied Mechanics and Graphic Statics
The condilion for a lifting machine to be reversible is that its efficiency should be

equal to 100%

more than 66.67%

more than 50%

less than 50%

equal to 100%

more than 66.67%

more than 50%

less than 50%

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Applied Mechanics and Graphic Statics
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by

g1/g2

g2/g1

g2

g1

g1/g2

g2/g1

g2

g1

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Applied Mechanics and Graphic Statics
If the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is

1500 meters

500 meters

1000 meters

2000 meters

1500 meters

500 meters

1000 meters

2000 meters

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Applied Mechanics and Graphic Statics
The centre of gravity of a triangle is at the point where three

Perpendicular bisectors of the sides of the triangle meet

Bisectors of the angle of the triangle meet

Medians of the triangle meet

None of these

Perpendicular bisectors of the sides of the triangle meet

Bisectors of the angle of the triangle meet

Medians of the triangle meet

None of these

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Applied Mechanics and Graphic Statics
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ? i. 1.0 in from the wall ii. 1.732 m from the wall iii. 1.0 m above the floor iv. 1.732 m above the floor The correct answer is

(ii) and (iii)

(i) and (iv)

(ii) and (iv)

(i) and (iii)

(ii) and (iii)

(i) and (iv)

(ii) and (iv)

(i) and (iii)

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics The condilion for a lifting machine to be reversible is that its efficiency should be

Applied Mechanics and Graphic Statics If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by

Applied Mechanics and Graphic Statics If the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is

Applied Mechanics and Graphic Statics The centre of gravity of a triangle is at the point where three

Applied Mechanics and Graphic Statics
The condilion for a lifting machine to be reversible is that its efficiency should be

Applied Mechanics and Graphic Statics
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by

Applied Mechanics and Graphic Statics
If the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is

Applied Mechanics and Graphic Statics
The centre of gravity of a triangle is at the point where three