Answer:
Explanation:
Acceleration is the time rate of change of velocity.
Acceleration and velocity are vectors
If east and north are the positive directions, the east moving vector is reduced to zero and the north moving vector increases from zero to 4 m/s.
There are 3 hours or 10800 seconds between 10 AM and 1 PM
a1 = √((-4)² + 4²) / 10800 = (√32) / 10800 m/s² ≈ 4.2 x 10⁻⁴ m/s²
There are 14400 seconds between 10 AM and 2 PM
The velocity changes are still the same
a2 = √((-4)² + 4²) / 10800 = (√32) / 14400 m/s² ≈ 3.9 x 10⁻⁴ m/s²
Answer: True
Explanation: Hope this helps :)
Answer:
ENQUIRE is the answer
Explanation: google....internet browser-.. .-.
That's false.
-- The force on the book is its weight.
-- The force acts through the distance the book falls.
-- The work done on the book is
(weight) x (length of the fall)
-- Gravity DOES the work.
atom ................................................... sorry for the periods
