The angle between the two vectors will be
0°
45°
90°
180°
The magnitudes of vectors are 3,4 and 5 units respectively. If , the angle between is
cos-1 (0.6)
The maximum range of a gun of horizontal terrain is 16 km. If g = 10 ms-2 , then muzzle velocity of a shell must be
160 ms-1
200√2 ms-1
400 ms-1
800 ms-1
The position vector of a particle, is . The velocity of the particle is
directed towards the origin
directed away from the origin
parallel to the position vector
perpendicular to the position vector
When milk is churned, cream gets separated due to
centripetal force
centrifugal force
frictional force
gravitational force
A boat is sent across a river with a velocity of 8 km h-1. If the resultant velocity of boat is 10 km h-1 , then velocity of river is
12.8 km h-1
6 km h-1
8 km h-1
10 km h-1
The vectors and are such that | + | = | - | then angle between the two vectors will be
60°
75°
When a body moves with a constant speed along a circle
its velocity remains constant
no force acts on it
no work is done on it
no acceleration is produced it
Which of the following is not a vector quantity?
Speed
Velocity
Torque
Displacement
The resultant of × 0 will be equal to
zero
A
zero vector
unit vector
