Answer:
The distance traveled by Tina before passing David is 900 m
Given:
Initial speed of David,
Acceleration of Tina,
Solution:
Now, as per the question, we use 2nd eqn of motion for the position of David after time t:
where
s = distance covered by David after time 't'
a = acceleration of David = 0
Thus
Now, Tina's position, s' after time 't':
where
, initially at rest
(1)
At the instant, when Tina passes David, their distances are same, thus:
s = s'
t = 30 s
Now,
The distance covered by Tina before she passes David can be calculated by substituting the value t = 30 s in eqn (1):
= 900 m
Answer:
I think the answer would be antigens
Explanation:
Answer:
Earth's tilted axis
Explanation:
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays.