Displacement Vector

(A):A balloon ascends from the surface of earth with constant speed.When it was at a height 50m above the ground,a packet is dropped from it .To an abserver on the balloon,the displacement of the packet,from the moment it is dropped to the moment it reaches the surface of earth is 50m. (R ):Displacement vector does not depend upon the reference frame used to measure it.

Which of the following is a null vector (a) velocity vector of a body moving in a circle with a uniform speed (b) velocity vector of a body moving in a straight line with a uniform speed (c) position vector of the origin of the rectangular coordinate system (d) displacement vector of a stationary object

Read each statement below carefully and state with reasons, with it is true or false : (a) The magnitude of vector is always a scalar. (b) Each component of a vector is always a scalar. (c) The total path length is always equal to the magnitude of the displacement vector of a particle. (d) The average speed of a particle (defined as total path length divided by the time taken to cover the path) is greater or equal to the magnitude of average velocity of the particle over the same interval of time. (e) three vectors not lying in a plane can never add up to give a null vector.

From a tower of height 40 m , two bodies are simultaneously projected horizontally in opposite direction, with velocities 2 m s^-1 and 8 ms^-1 . respectively. The time taken for the displacement vectors of two bodies to be come perpendicular to each other is.

A displacment vector fo magnitude 4 makes an angle 30^(@) with the x-axis. Its rectangular components in x-y plane are

Displacement Reaction

In the following questions a statement of assertion (A) is followed by a statement of reason ( R). A: Angular displacement is vector quntity only for small values . R: The direction of angular displacement is perpendicular to plane of rotation of object .

Classify the following as scalars and vectors : Time Distance Displacement Force Work Torque Velocity Speed Acceleration Mass

Classify the following as scalars and vector quantities: a.Time period b. Distance c. Displacement d.Force e. Work f. Velocity g.Acceleration

What is the difference between displacement and double displacement reactions? Write equations for these reactions.