The triangle law of forces states that if two forces acting simultaneously on a

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The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
Options
A. True
B. False

Correct Answer

True

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3. When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
Options
A. simple pendulum
B. compound pendulum
C. torsional pendulum
D. second's pendulum

5. Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
Options
A. v
B. v/2
C. v/4
D. v/8

7. The Bernoulli's equation is based on the assumption that
Options
A. there is no loss of energy of the liquid flowing
B. the velocity of flow is uniform across any cross-section of the pipe
C. no force except gravity acts on the fluid
D. all of the above

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