Advertisements
Advertisements
प्रश्न
State whether speed is a scalar or a vector quantity. Give reason for your choice.
Advertisements
उत्तर
Speed is a scalar quantity. This is because it has magnitude, but it does not specify direction. It is the distance travelled by a body per unit time.
APPEARS IN
संबंधित प्रश्न
What does the path of an object look like when it is in uniform motion?
What name is given to the speed in a specified direction ?
A train starting from Railway Station attains a speed of 21 m/s in one minute. Find its acceleration.
A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with uniform acceleration for 3 s. What is his acceleration ?
What do you mean by motion in one direction?
Figure shows the displacement of a body at different times .
Calculate the velocity of the body as it moves for time interval :
(i) 0 to 5 s,
(ii) 5 s to 7 s
(iii) 7 s to 9 s.
The velocity-time graph of a moving body is given below in Figure
Displacement in each part AB, BC and CD.
What is the relation between distance and time when the body is moving with variable velocity?
Draw a diagram to show the motion of a body whose speed remains constant, but velocity changes continuously.
Distinguish between speed and velocity.
