Question

A person moves a distance of 3km towards east, then 2 km towards north and then 3.5 km towards east. Find- (a) The distance covered by the person (b) The displacement of this motion

Answer 1

Hello friend

Here's your answer

Distance is the length of the path taken/covered by an object. It is a scalar quantity (scalar quantities are the ones which only have magnitude like time)

Here distance will be 3km+2km+3.5km

=8.5km

Displacement is the length of the shortest path between the initial and the final position. It is a vector quantity (Vector quantities are the ones which have both magnitude,called speed and direction)

Here displacement can be found out using Pythagorean theorem

Displacement ²=2²+6.5²

Displacement=√4+42.25

Displacement=√46.25=6.8(approx)

Hope it helps!

Answer 2

Answer:

a) Distance will be

3km + 2km + 3.5km = 8.5km

b) Displacement

Using Pythagoras theorem

= 2² + 6.5²

= _/4 + 42.25

= _/46.25

= 6.8

Explanation:

hope it'll help you

have you great day ahead