Question

Guys please tell
Pooja 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 4 rounds on the road the same
way. Pooja concludes that her motion is
w only rectilinear motion.
ii. only periodic motion.
iii. rectilinear and periodic both
iv. neither rectilinear nor periodic
Reason:​

Answer 1

Answer:

i am not sure but it is only rectilinear motion since she is travelling in only one direction.

Explanation:

Answer 2

Pooja is moving in a straight path and repeating the path of travel with the same velocity for four times.

This implies that her motion is

iii. Both rectilinear and periodic

Rectilinear motion is motion along along a straight line. Here Pooja is moving along the straight path AC back and forth.

Periodic motion is a form of motion that repeats itself after regular intervals of time. Here Pooja is travelling along AC and CA and repeating her path.

Hence she can conclude that her motion is both rectilinear and periodic.