Question

annu has to walk to a medical ahop 400m away from house to buy some medicine. after walking 100m, she realises that she does not have enough mobey and goes back home. if it took her two minutes to leave and come back, calculate the following: a) how long was shw out of the house?
b) How far did she walk?
c) what was her dusplacement?
d) what was her average velocity? (in ms)
e) what was her average speed?

Answer 1

a) Anu have walked 200meters i.e 100 meters towards the medical shop and 100 meters back to the house on realizing that she didn't had enough money
b) her displacement was zero because her initial position is her final position i.e her house
c) her average velocity was zero since velocity is defined as displacement divided by time taken
d) her average speed was = 200 /(2x60) = 1.67 ms^-1