1. In uniform circular motion which of the following happens? (I) There is change in magnitude of velocity (II) There is change in direction of velocity

2. Unit of force in SI unit is

3. An In a problem the algebraic sum of all horizontal (ZH) is 16 N and the algebraic sum of all vertical force (ZV) is 32 N. The resultant force is:

4. A body was falling freely under gravity at velocity 25m/s. What force is required to stop the body in 2 seconds, if mass of the body is 20kg?

5. When the forces in a force system lie in the same plane and have the same line of action, then the force system is called:

6. The algebraic sum of the moments taken about any point in the plane of forces is zero is known as:

7. A horizontal force 40 kgf is applied on a body of weight 120 kg placed in a horizontal plane. If the body is just in the point of motion, the angle of friction be:

8. The rotational tendency of a force is called:

9. The Lami’s theorem is applicable only for :

10. The velocity of a moving body is -

11. Impulse has the same unit as--------- .

12. The product of mass and velocity of a body is called

13. A The force which produces an acceleration of lm/sec2 in a mass of one

14. In Free body diagram is an

15. The analytical method for addition of more than three vectors :

16. A car of mass 10,000 kg is moving with a velocity of 25m/s over a circular horizontal curve of radius 80 m. What is the centrifugal force acting on the car?

17. One Newton is equivalent to :

18. The base unit of length in S.I. System:

19. Concurrent force system means_______

20. If ’s’ is the distance transversed by a particle within time ’t’. its acceleration is-

21. A quantity having both magnitude and direction is:

22. The specific weight of water in S.I. units is :

23. In a co-planner force system, if the sum of all horizontal components of system is equal to zero, the resultant will:

24. Which of the following is a scalar quantity ?

25. Which of the following is fundamental quantity?

26. In SI unit, unit of force and energy are respectively :

27. A body of mass 20 kg moves over smooth plane w hose equation of motion is S = 10t+t2

28. Free body diagram represents______

29. Concurrent forces are those forces whose line of action

30. In case of forces, a couple means

31. If a number of forces are acting simultaneously on a particle, then the resultant of these force will have the same effect as that of the applied forces. This principle is called :

32. Two forces act at an angle of 120 degree. The bigger force is 60 N and the resultant is perpendicular to smaller force "F". What is value of F?

33. What is the statement of triangle law known as?

34. Angles between two forces to make their resultant minimum and maximum are respectively :

35. Force polygon representing a set of forces in equilibrium is a :

36. A block of weight 20 kN just begins to move along a horizontal surface on application of 5 kN horizontal force. The coefficient of friction between block and surface is:

37. A block of 50 kg mass is pushed up on an inclined plane by a force of 100 N acting parallel to the inclined force as shown in the figure. The magnitude of the frictional force for static condition will be

38. If the sum of all forces acting on a body is zero, then the body may be in equilibrium provided the forces are :

39. Magnitude of equilibrant of two forces F1 and F2 acting normally to each other is 50 kN. If magnitude of force Fi is 40 kN, then magnitude of force F2 will be

40. The unit of Acceleration is

41. A block weighs 100 kg. If the co-efficient of friction between it and ground is 0.3. Find the force required to move the block:

42. Force acting on a particle moving along a circular path at a constant speed is

43. If lines of action of forces in a system of force meet at a point then these forces are called as:

44. If the resultant of two forces has the same magnitude as either of the forces, then the angle between the forces is :

45. A couple produces

46. The forces whose line of action lie on the same line are known as-----

47. Unit of force is:

48. The moment of a force about any point is---------times the rate of a triangle whose base represents the FORCE and vertex opposite to base represents the MOMENT CENTRE.

49. Which of the following is a scalar quantity?

50. Varignon’s theorem of moments states that: