Loading [MathJax]/jax/output/CommonHTML/jax.js

Work done by a force (F) in displacing a body by dx is given by W=F(x).dx. If the force is given as a function of displacement (x) by F(x)=(x22x+1)N, then work done by the force from x=0 to x=3 m is:

1. 3 J

2. 6 J

3. 9 J

4. 21 J

Subtopic:  Integration |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The impulse due to a force on a body is given by I=Fdt. If the force applied on a body is given as a function of time (t) as F=(3t2+2t+5)N, then impulse on the body between t=3 s to t=5 s is:
1. 175 kg-m/sec
2. 41 kg-m/sec
3. 216 kg-m/sec
4. 124 kg-m/sec

Subtopic:  Integration |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following option is not true, if A = 3ˆi + 4ˆj and B = 6ˆi + 8ˆj, where A and B are the magnitudes of A and B?
1. A × B = 0

2. AB = 12

3. A·B = 48

4. A=5

Subtopic:  Vector Product |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The angle made by the vector A = 3ˆi + 3ˆj + 2ˆk with y-axis is:

1.  sin-1(314)

2.  sin-1(74)

3.  cos-1(43)

4.  cos-1(35)

Subtopic:  Scalar Product |
 50%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links

In the space, if the sum of vectors of unequal magnitude is zero, then the minimum number of vectors are:
1. 2

2. 3
3. 4
4. 5

Subtopic:  Resultant of Vectors |
 60%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

If A + B is perpendicular to A - B  , then which of the following statement is correct?

1. |A| = |B|

2. A  B

3. A·B = zero

4. (A + B)·(A - B)  0

Subtopic:  Scalar Product |
 56%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The angle between the two vectors (2ˆi+3ˆj+ˆk) and (ˆi+2ˆj4ˆk) is:
1. 0

2. 90

3. 180

4. 45

Subtopic:  Scalar Product |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

If a + b + c = 0; then which of the following statements is incorrect?

(1) a, b and c must each be a null vector.

(2) The magnitude of a+b equals the magnitude of c.

(3) The magnitude of ä can never be greater than the sum of the magnitudes of b and c

(4) ä must lie in the plane of b and c.

Subtopic:  Resultant of Vectors |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

When a force of magnitude F acts on a body of mass m the acceleration produced in the body is a. If three coplanar forces of equal magnitude F act on the same body as shown in the figure, then acceleration produced is

                                

1.  0

2.  (3 +1)a

3.  (3 -1)a

4.  3a

Subtopic:  Resultant of Vectors |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Three forces each of magnitude 1 N act along with the sides AB, BC, and CD of a regular hexagon. The magnitude of their resultant is:

                                

(1) 4N 

(2) Zero

(3) 2 N

(4) 1 N

Subtopic:  Resultant of Vectors |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch