Question

The North American and European continents
are drifting apart with an average speed of 3cm
per year. The time taken to drift apart by
another 1500m is​

Answer 1

Answer:

50000years

Explanation:

3cm-1year. note:-1m=100cm

1500m=1500x100=150000

150000-x

cross multiply

=> 3x=150000x1

=> x=150000/3

=> 50000years

Answer 2

Given:

Average Speed = 3cm

Total speed = 1500cm

To Find:

Total time taken to drift apart

Solution:

Average speed is calculated from the change in displacement divided by the elapsed time.

v = Δs/Δt or

Δt = Δs/v

= 1500/3 × 100/m

= 150000/3

= 50000

= 5 × 10`4

Answer: The total time taken is 5 × 10`4 years