04-23-2011, 05:11 AM
[SIZE="4"][SIZE="4"][COLOR="rgb(139, 0, 0)"]full solution in attachment [/COLOR][/SIZE][/SIZE]
Question No. 1
If you have an umbrella, suddenly you have to face a rain storm with a strong wind, what determines the best position in which to hold an umbrella? Marks = 3
Answer:
The raindrops have a vertical velocity relative to the ground & you have a horizontal velocity when moving relative to the ground & so the raindrops can penetrate "under" the umbrella & wet your legs.
Question # 2
Does Newton‘s second law hold true for an observer in a car as it speeds up, slows down or rounds a corner?
Question No. 1
If you have an umbrella, suddenly you have to face a rain storm with a strong wind, what determines the best position in which to hold an umbrella? Marks = 3
Answer:
The raindrops have a vertical velocity relative to the ground & you have a horizontal velocity when moving relative to the ground & so the raindrops can penetrate "under" the umbrella & wet your legs.
Question # 2
Does Newton‘s second law hold true for an observer in a car as it speeds up, slows down or rounds a corner?