(e) What is random motion? Give an example
(0) What is s
What is speed? Write its SI unit
(g) Rest and motion are relative terms Write in brief
VA
Answers
Answer:
1 and) Butterfly flying, Cockroach running, motion of a car which has lost control, motion of player playing kabbadi match, Motion of player playing playing football, motion of fish, frog jumping here and there,motion of pencil while scribling.
2 ans) Speed can be thought of as the rate at which an object covers distance. ... Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour.
SI unit: m/s, m s−1
Common symbols: v
Dimension: L T−1
3 ans)Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.
Explanation:
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Answer:
(e) Random Motion is a motion in which an object didn't go in a straight manner, the object move in a zig zag manner. This is called Random Motion.
Examples are :
- Butterfly flying,
- Cockroach running,
- motion of a car which has lost control,
- motion of player playing kabbadi match,
- Motion of player playing playing football,
- motion of fish,
- frog jumping here and there,
- motion of pencil while scribling.
(o) In everyday use and in kinematics, the speed of an object is the magnitude of the change of its position; it is thus a scalar quantity.
SI unit: m/s, m s−1
(g) Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.