A. 3 am
B. 5 pm
C. 7 am
D. 9 pm
Correct Answer:
Option D – 9 pm
Explanation
30°E + 30°W = 60°, 1hour = 15°, therefore 60° gives 4 hours which means both are 4 hours interval. In time calculation, the west love an hour at every step which the est gains an hour. The wife is carrying the baby and calling the husband at 30°E, 1 am, so the husband at the west will loose an hour at every step.
1 am before 12 midnight, westward minus 3 hours gives 9 pm in Sunday. Therefore, the wife calls on Monday while the husband receives the call on Sunday at 9 pm.
![A body of mass 2kg is released from rest on a plane inclined at an angle of 60º to the horizontal. Calculate the acceleration of the body down the plane.[g = 10ms‾²]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A body of mass 2kg is released from rest on a plane inclined at an angle of 60º to the horizontal. Calculate the acceleration of the body down the plane.[g = 10ms‾²]")
