Question

2. Displacement can be zero but distance cannot. Why?
3. An object moving with constant speed may have a variable velocity. Explain.
4. A drilling machine shows a combination of motions. Why?
5. An object moves to and fro about a mean position, what type of motion does it possess? O 5
6. An oscillatory motion is always periodic, but a periodic motion is not always oscillatory. Explain
an example.
7. What is uniform motion?​

Answer 1

Answer:

2. Displacement can be zero but distantce because displacement has both direction and magnitude while distance has only magnitude. Therefore, as we move from our home to the shop and then back to home, displacement is zero while distance is not zero. The distance can be zero only if the object remains at rest.

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3. Yes because the velocity depends on direction and the object may move with same speed but it is possible it's direction is changing so it's speed is constant but velocity is variable.

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4. When we perform drilling operations. Let understand it. And cause remove of material from work pieces and due to this the drilling moves inside the work piece and create hole.

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5. The to and fro motion of an object is called oscillation.

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6. All oscillatory motions are periodic because each oscillations gets completed in a definite interval of time. ... Eg: Revolution of planets around the Sun is a periodic motion but not an oscillatory motion (i.e. no to and fro motion about its mean position is present).

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7. A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals may be. If we draw distance time graph for uniform motion then it will be straight line.

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I hope it helps u dear friend ^_^

Have a good day ..!!!

Answer 2

2) Yes , displacement can be zero but distantce because displacement has both direction and magnitude while distance has only magnitude. ... The distance can be zero only if the object remains at rest.

3) Yes because the velocity depends on direction and the object may move with same speed but it is possible it's direction is changing so it's speed is constant but velocity is variable.

4) When we perform drilling operations. Let understand it. And cause remove of material from work pieces and due to this the drilling moves inside the work piece and create hole.

5 ) Oscillatory Motion

Oscillatory Motion: The bob of the pendulum moves to and fro along the same path and passes through the mean position. This type of motion is called oscillatory motion.

6) All oscillatory motions are periodic because each oscillations gets completed in a definite interval of time. ... Eg: Revolution of planets around the Sun is a periodic motion but not an oscillatory motion (i.e. no to and fro motion about its mean position is present).

7) A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals may be. If we draw distance time graph for uniform motion then it will be straight line.

Hope my answer help you