Vector Notation
Trending Questions
How do you find the angle of resultant vector?
- 45∘, 90∘
- 90∘, 90∘
- 45∘, 45∘
- 30∘, 60∘
A cart of mass has a block of mass m attached to it, the coefficient of friction between the block and the cart is . What is the maximum acceleration of the cart so that the block m does not fall
What is the ?
- 2 sec
- 1 sec
- 4 sec
- 6 sec
Draw a graph from the following data. Draw tangents at x = 2, 4, 6 and 8. Find the slopes of these tangents. Verify that the curve drawn is y=2x2 and the slope of tangent is tan θ=dydx=4x.
x12345678910y281832507298128162200
30° west
0°
45° west
60° west
- −5√2(∧i−∧j)
- −12(∧i+∧j)
- 12(∧i−∧j)
- 5√2(∧i+∧j)
In the figure shown, explain the difference between and .
(2m, 3m) at time t=0,
(6m, 7m) at time t=2 s and
(13m, 14m) at time t=5 s.
Average velocity vector (→Vav) from t=0 to t=5 s is:
- 15(13^i+14^j)
- 73(^i+^j)
- 2(^i−^j)
- 115(^i+^j)
- t=0
- t=π4ω
- t=π2ω
- t=πω
- True
- False
- (5^i+13.5^j)N
- (5^i+15^j)N
- (5^i+13^j)N
- (15^i+5^j)N
- always lies in the plane containing ¯¯¯a+¯¯b
- always lies in the plane containing ¯¯¯a−¯¯b
- can be zero
- cannot be zero
- False
- True
Vector →A=5^i+4^j+3^k is rotated around Z-axis such that its projection on the x-y plane is rotated through 180∘.Choose the correct option?
No it won't as translation of a vector doesn't change it
Yes, New Vector =
No, it won't as the angle is
Yes, New vector =
- 200kg
- 6√2kg
- 10√2kg
- 20kg
- tan−1(3/2)
- tan−1(2/3)
- sin−1(2/3)
- cos−1(3/2)
- 5π3 rad
- 2π3 rad
- π2 rad
- π4 rad
Motion in 3-Dimension can't be represented with the help of vectors.
- True
- False
- 3
- 3.5
- 4
- 4.5
x | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
y | 2 | 8 | 18 | 32 | 50 | 72 | 98 | 128 | 162 | 200 |
- 141.4ms−1
- Zero
- 50ms−1
- 100ms−1
- Direction
- Magnitude
- Both (A) and (B)
- None of the above.