. Zara travelled in a train moving at an average speed of 120km/h and covered a distance of 40km towards East. ⦁ She further travelled for 3hours at a speed of 120km/h towards North. Calculate the distance she covered in this time.

The question is incomplete. Here is the complete question.

Q2. Zara travelled in a train moving at an average speed of 120km/h and covered a distance of 40km towards East.

i. Calculate the time taken by the train to cover this distance.

ii. She further travelled for 3hours at a speed of 120km/h towards North. Calculate the distance she covered in this time.

1) Using the formula for calculating speed

Speed = Distance/Time

If Zara traveled at an average speed of 120km/h and covered a distance of 40km towards East,

Distance covered = 40km

Speed = 120km/hr

Time taken = Distance/Speed

Time taken = 40/120

Time taken = 1/3 hr

Time taken = 1/3 * 60 = 20 minutes

ii) If she further travelled for 3hours at a speed of 120km/h towards North,

Her speed = 120km/hr

Time Taken = 3hours

Distance covered this time = Speed *Time

Distance covered this time = 120 * 3

Distance covered this time = 360km

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)