Options:
- A. Their dot product
- B. Their cross product
- C. Head to tail rule
- D. Right-hand rule
View Answer
A. Their dot product
Physics
The cross product of two vectors is a negative vector when______________?
Options:
- A. They are parallel vectors
- B. They are anti parallel vectors
- C. They are a perpendicular vector
- D. They are rotated through 270
View Answer
D. They are rotated through 270
The magnitude of the cross product is equal to the dot product between them. The angle between the two vectors is________________?
Options:
- A. 30
- B. 45
- C. 60
- D. 180
View Answer
B. 45
In which quadrant, the only value of tan will be positive ?
Options:
- A. First
- B. Second
- C. Third
- D. Both 1st and 3rd
View Answer
D. Both 1st and 3rd
Torque is defined as______________?
Options:
- A. Turning effect of force
- B. Cross product of position vector and force
- C. Product of force and moment arm
- D. All A, B and C are correct
View Answer
D. All A, B and C are correct
The magnitude of i^. (j^ x k^) is________________?
Options:
- A. 0
- B. 1
- C. -1
- D. i^
View Answer
B. 1
The dimension of torque is______________?
Options:
- A. [ML2T-2]
- B. [MLT-2]
- C. [ML2T]
- D. [ML-2T-2]
View Answer
A. [ML2T-2]
If A=Ax i^ + Ay j^ + Az K^ B = Bx i^ + By j^ + Bz K^ then______________?
Options:
- A. A. B = Ax Bx + Ay By + Az Bz
- B. A. B = Ax By + Ay Bz + Az By
- C. A. B = Ay Bz + Az By + Az Bx
- D. A. B = Ax Bz + Ay By + Az Bx
View Answer
A. A. B = Ax Bx + Ay By + Az Bz
SI unit of torque is______________?
Options:
- A. N.m
- B. joule
- C. Both a and b are correct
- D. Neither a nor b is correct
View Answer
A. N.m
A central force is that which__________________?
Options:
- A. Can produce torque
- B. Cannot produce torque
- C. Some time can produce torque some time cannot
- D. Has no relation with torque
View Answer
B. Cannot produce torque