Welcome to your PHY SET- 6
1.
Body in uniform circular motion: which is true?
2.
Angle between vectors A = 2i + 3j + k and B = –3i + 6k?
3.
Two same-mass balls, one projected vertically, other at 60° to vertical. Ratio of P.E. at highest point?
4.
Velocity vector of projectile makes angle with horizontal after t seconds?
5.
Same speed, one ball thrown vertically up, other at 60° to vertical. P.E. ratio?
6.
Ball B at 15° to horizontal. A covers same horizontal distance. Find angle of A.
7.
r⃗ = ω cos t î + ω sin t ĵ ⇒ nature of motion?
8.
u increases by 2%, effect on max height?
9.
Two forces of magnitude P give resultant of same magnitude P ⇒ angle between?
10.
Two angles give same projectile range R. If t₁ and t₂ are flight times, then?
11.
Circular motion: which is true?
12.
What is the value of (A × B) ⋅ B when the angle between vectors A and B is θ?
13.
Which of these does not depend on coordinate system?
14.
If the sum of two unit vectors is a unit vector, then what is the magnitude of A – B?
15.
Aircraft 3400 m above ground, seen 10s apart at 30° angle ⇒ speed?
16.
Projectile from base of 30° inclined plane hits it normally ⇒ angle of projection?
17.
Vector relation from diagram: S on R; PS = b ⇒ general form?
18.
Projectile at 45° after 1s, horizontal after 2s ⇒ initial velocity and angle?
19.
Projectile: max range = 400 m. If horizontal range is 200 m, find angle of projection.
20.
Position vector = i + 2j; velocity vector = 2i – j. Find angular momentum.
21.
Condition for a vector perpendicular to both A and B.
22.
Which statement is false about projectile motion?
23.
Which remains constant in uniform circular motion?
24.
Range R and time T of projectile. Max height = ?
25.
Work done by centripetal force in full circle?
26.
Scalar triple product gives...
27.
Two equal forces at 60° produce resultant of magnitude √3F ⇒ angle between them?
28.
Which gives maximum result?
29.
Initial velocity = u, thrown at angle θ, time to top = ?
30.
Range R = 80 m, max height H = 20 m ⇒ time of flight?
31.
At top of trajectory, projectile’s velocity is...
32.
i and j are unit vectors. What is the magnitude of i + j?
33.
Scalar product of two vectors gives...
34.
Angle between two vectors with unit magnitude and resultant also unit?
35.
Range of projectile with same KE but mass m and 2m; compare ranges.
36.
A = 2i + 3j; B = i + 2j ⇒ A × B = ?
37.
Angle between vectors A = 3i + 4j and B = 4i – 3j?
38.
Which of these is not a vector quantity?
39.
Which pair gives scalar result?
40.
In vector notation, A ⊥ B if...
41.
If vector A = 2i + 3j and B = i – j, find A · B
42.
Which of the following is not true?
43.
Work done = 20 J, displacement = 4 m ⇒ force = ? (along same line)
44.
Velocity of object at highest point in projectile motion?
45.
What is vector quantity among the following?
