Question

(a). What would be acceleration of a body if its velocity –time graph is a line parallel to time axis.
(b). Name the device use to measure travelled distance and instantaneous speed. ​

Answer 1

Answer:

a) When velocity time graph is parallel to time axis, velocity = constant, i.e., acceleration of body is zero.

b) A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle.

Answer 2

Answer:

a) zero acceleration

b) speedometer