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MCQ: For a right angle triangle if base is 4 cm and perpendicular is 3 cm then cosθ is equal to

1. 0.9
2. 0.8
3. 0.3
4. 1

B

MCQ: Number of perpendicular components of a force are

1. 1
2. 2
3. 3
4. 4

B

MCQ: When resultant torque acting on a body is zero, then body satisfies

1. 2nd condition for equilibrium
2. third condition for equilibrium
3. no equilibrium state
4. first condition for equilibrium

A

MCQ: Two children sitting on a see saw are not swinging, net torque is

1. greater than 1
2. less than 1
3. zero
4. infinite

C

MCQ: If a body remains in its new position when disturbed from its previous position, then it is said to be in state of

1. stable equilbrium
2. unstable equilibrium
3. neutral equilibrium
4. zero equilibrium

C