Physics_ Motion in Two Dimension

1. The motion on a curved path, when on comp. of velocity is constant & other is variable is called

a) Circular motion
b) Vibratory motion
c) projectile motion
d) Translatioinal motion
2. Every point on a rotating body has the seme

a) Linear velocity
b) angular velocity
c) Linear acc
d) Tangential velocity
3. Due to presence of air resistant, the total time of the light of projectile

a) Remain the same
b) Decrease
c) Becomes zero
d) Increases
4. A projectile is fired with the initial velocity 90m/s to it a a ground level target.its maximam horizontal range will be

a) 9.2 m
b) 826.5 m
c) 413 m
d) 81 m
5. In projectile motion, a body moves with

a) Constant vertical comp.
b) Both changing comp.
c) Horizontal comp changing but vertical comp constant
d) Constant horizontal comp
6. If a projectile is a launched at 45digree with velocity 100m/s it hit the target, it will have double the target of its velocity is

a) 141.4 m/s
b) 200 m/s
c) 173 m/s
d) 400 m/s
7. If a projectile is thorn at the angle of 35digree, it hits a certain target it will have the same, if it is throw at angle of

a) 45 degree
b) 55 degree
c) 10 degree
d) 70
8. A body is moving along a cycle with increasing speed to possess

a) Tangential acc
b) Centripetal acc
c) Both acc
d) No acc
9. One radian is equal to

a) 57.3 degree
b) 0.0017 degree
c) 35.7 degree
d) 1
10. The angle b/w centripital acc.and tangential

a) 0 digree
b) 90 digree
c) 180 digree
d) 45 digree
11. Maximam height of a projectial depends on

a) Angle of projection
b) Both angle and velocity
c) velocity of pojection
d) N.O.T
12. S.I unit of angular velocity is

a) m/sec
b) red/sec
c) deg/sec
d) rev/sec
13. Whn a body moves along the circumference of a circle with uniform speed takes place in its

a) Linear velocity
b) Tangential acc
c) Both
d) Not possible
14. When a body moves along the circumference of a circle with uniform speed, changes takes place in its

a) Liner velocity
b) Tangential acc
c) Both
d) Not possible
15. When a body moves along the projectile path, which comp.of its velocity does not changes

a) Horizontal
b) Vertical
16. The range of ghori missile is

a) 1500 km
b) 200 km
c) 2500 km
17. When a body is thrown vertical upward,it is a case of

a) Free fall motion
b) Pojectile motion
c) Undergravity motion
d) Vibratory motion
18. When a particals moves in a circle,the angle b/wlininer vilocity and angular velocity is always

a) 0 digree
b) 180 digree
c) 90 digree
d) 45 digree
19. A particle is moving with a uniform speed in a circle has _________ acceleration

a) Zero
b) Maximum
c) Uniform
d) Variable
20. Relation b/w linear velocity & angular vilocity is

a) V=rE
b) W=rV
c) r=vW
d) V=r/W
21. every point a rotating body has the same

a) liner velocity
b) angular velocity
c) angular momentem
d) linear velocity
22. When a body is thrown vertically upward it is a case of

a) Pojectile motion
b) Free fall motion
c) Under gravity
d) S.H.M
23. Abody is moves in a circle with increasing speed. it possess

a) tangential acc
b) angular acc
c) centipital acc
d) tangential & centripital acc both
24. If the initial speed of projectile in doubled its range will

a) double
b) increase 4 time
c) decrease by 1 half
d) becoms one fourth
25. When an object moves with constant speed in a circle it has

a) Centripital acc
b) No centripital acc
c) Decrease by one half
d) Becmes one fouth
26. All points of a rotating body have the same value

a) Linear dispisment
b) Linear acc
c) l
Linear linear speed
d) Angular velocity
27. A projectile which is fired horizontal has its speed maximam at the moment of

a) Projection
b) Hit the ground
c) Both of these
d) None of these
28. The projectile motion is a superpoistion of two

a) circular motion
b) simple harmonic motion
c) one dimensional
d) none of these
29. Projectile motion is

a) One dimensional
b) two dimensional
c) Three dimensional
d) Multi-dimensional
30. For projectile motion

a) A body must be thrown vertically
b) A body must have constant horizontal velocity
c) Body must fall under the action of gravity
d) Body must have a constant horizontal velocity & at the same time it must fall freely under the action of gravity
31. Vertically component of the velocity of a projectile is zero at

a) The point of projection
b) At the target
c) At the highest piont
d) None of these
32. Velocity of a nprojectile is maximum at

a) At the higest point
b) Th point of projection
c) The target point
d) A & B
e) B & C
33. Horizontal range of a projectile depends upon

a) Initial velocity
b) Angle of projection
c) Weight of projecion
d) A& B
e) A & C
34. If air risistance is not negligible then

a) Horizontal range of projectile decrease
b) Time of flight becomes short
c) Vertical range decrease
d) A & B
e) A & C
35. Horizontal range of a projectile is maxmiam when its fired at an angle of

a) 30 digree
b) 45 digree
c) 60 digree
d) 90 digree
36. In order to hit a mobile is bettr to fire a projectie at smaller of the twe possible angle because

a) Trajectory of the projectile will be flat
b) The time of the flite will be short
c) Effect of the air risistant will be negligtible
37. The trajectory of a projectile is

a) A stright line
b) Acircle
c) Hyperbole
d) Parabola
38. When distance coverd by a body along a circular path is equal to radius of the circular path then the angle subsententd at the center will be equel to

a) 1 digree
b) 1 radian
c) 1 stradian
d) 1 minute
39. For a compelete revoulution the angular displacement fo the body will be :

a) 3.142 radian
b) 2(3.142) radian
c) 3.142/2 radian
d) 3.142/4 radian
40. Centipital accleration is due to

a) A change in magnitude of velocity
b) A change in direction of veiocity
c) A change in unit of velocity
d) A change in megnitude & directoin of velocity
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