26. The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as
27. The centre of gravity of an equilateral triangle with each side a, is __________ from any of the three sides.
28. The distance, between the point of projection and the point where the projectile strikes the ground, is known as range.
29. The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
30. 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.
31. The angle between two forces when the resultant is maximum and minimum respectively are
32. The path of the projectile is a parabola.
33. Krishna Poonia is associated with?
34. A redundant frame is also called __________ frame.
35. Koyana Hydro electric power project is located in which of the following states?
36. A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.
37. 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
38. Who is the permanent Indian representative of UNO?
39. If two blocks of equal mass are attached to the two ends of a light string and one of the blocks is placed over a smooth horizontal plane while the other is hung freely after passing over a smooth pulley, then the two blocks will have some motion.
40. During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
41. Work done is said to be zero, when
42. The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.
43. One watt is equal to
44. two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
45. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is __________ the momentum of body having mass m2.
46. The point, through which the whole weight of the body acts, irrespective of its position, is known as
47. The loss of kinetic energy during elastic impact is zero.
48. The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ .
49. Which of the following is a scalar quantity?
50. The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as