Paheli moves on a straight road from point A to point C. She takes 20 minutes to cover a certain distance BC. She then turns back and takes 30 minutes to cover the rest distance CB, and 20 minutes to cover the rest of the distance to her standing point. She makes 5 rounds on the road the same way. Paheli conclude that her motion is ______________ .

neither rectilinear nor periodic

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only rectilinear motion

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rectilinear and periodic both

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only periodic motion

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Solution

The correct option is C rectilinear and periodic both

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Question 5

Paheli moves on a straight road from point A to point C. She takes 20 minutes to cover a certain distance AB and 30 minutes to cover the rest of distance BC. She then turns back and takes 30 minutes to cover the distance CB and 20 minutes to cover the rest of the distance to her starting point. She makes 5 rounds on the road the same way. Paheli concludes that her motion is

(a) Only rectilinear motion.

(b) Only periodic motion.

(d) Neither rectilinear nor periodic.

Q. Paheli moves on a straight road from point A to point C. She takes 30 minutes to cover the distance. She then starts from C, and gets back to A in 40 minutes thus completing a round. She makes 5 rounds on the road, the same way. Paheli concludes that her motion is:

Q. Paheli moves on a straight road from point A to point C. She takes 30 minutes to cover the distance. She then starts from point C and gets back to point A in 40 minutes, thus completing the trip. She makes 5 trips on the road the same way. Paheli concludes that her motion is:

Q. Starting from A, Paheli moves along a rectangular path ABCD as shown in figure. She takes 2 minutes to travel each side. Plot a distance-time graph and explain whether the motion is uniform or non-uniform.

A girl decides to go for shopping. The mall is 5 km from her home. She covers the first 3 km at a speed of 30 km/hr. She is stuck in traffic for 6 minutes and covers rest of the distance at 40 km/hr. How much time did she take to reach the mall? Also, find her average speed. [5 MARKS]

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The correct option is C rectilinear and periodic both​

The correct option is C rectilinear and periodic both