Question

which of the following graphs show object to be stationary?
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Answer 1

Answer:

correct answer is (a)

(a) Distance and Time

Answer 2

Graph (b) shows the object to be stationary.

Explanation:

Object is stationary when it is at rest, which means velocity is zero and there is no change in position of the object.

Graph (a):

• It shows a linear increasing graph between distance and time.
• There is increase in distance of object with increase in time.
• The slope is positive for this graph which means speed is non zero and positive.
• So, the object is not stationary in this case.

Graph (b):

• It shows a horizontal line between position and time.
• There is no increase in position with time.
• The slope of the graph is zero which means speed is zero.
• Here, the object is stationary.

Graph (c):

• It shows a horizontal line between velocity and time.
• There is no increase in velocity with time but the value of velocity is positive and not zero.
• The object is moving with a constant velocity and zero acceleration.
• Object is not stationary.

Graph (d):

• It shows a horizontal line between acceleration and time.
• There is no increase in acceleration with time but the value of velocity increases with time because acceleration is positive.
• The object is moving with uniform acceleration.
• Object is not stationary.