Question

A girl cavers a distance of 90m in 1min what is her speed?

Answer 1

Answer:

1.5m/s.

Explanation:

speed=distance÷time

90m÷1min

we can write 1min=60sec

90m÷60sec

=1.5m/s.

Answer 2

Answer:

1.5 m/s

Explanation:

Given :

• Distance travelled by the girl = s = 90 metres

• Time taken by the girl to cover 90 metres = t = 1 minute = 60 seconds

To find :

• Speed of the girl if she covers a distance of 90 metres in 60 seconds

Speed = distance / time

Speed = 90/60

Speed = 9/6

Speed = 1.5 m/s

The speed of the girl is equal to 1.5 m/s and she covers a distance of 90 metres with this speed in a time period of 60 seconds

More :

• Time = distance /speed

• Distance = speed × time

The three terms speed, distance and Time are related to each other and can be derived from each other