21. Write the difference between distance and displacement (minimum 3 points)'
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(22. A bus starting form rest moves with a uniform acceleration of 0.1 ms for 2 minutes.
Find a) The speed acquired, (b) the distance travelled.
23. Why is it advised to tie any luggage kept on the roof of a bus with a rope?
if you ans this you are brillent or you are the waste person in the world .and this is my challange.........
Answers
Explanation:
Distance Displacement
- it is the complete distance Between two points is called distance. it is the direct length between two poin
- it is an scalar quantity only depends on magnitude. two points belong along the path.
- it's formula is : speed × time. it is an vector quality as it needs both it's formula is : velocity×time ( displacement formula )
Answer:
22. 22 number I have solved above
21. Distance is a scalar quantity while displacement is a vector quantity.
Distance is the length travelled by a body at various paths while displacement is the shortest distance travelled by a body.
Distance does not depend on direction while displacement depends upon direction.
23. It is because of inertia, when the luggage is kept on the roof of bus, it is at rest due to inertia of rest, but when the bus starts moving, the luggage due to inertia of motion may fall on the passenger and hurt them, so it is advised to tie any luggage on the roof of the bus.
