Answer:
7.5s
Explanation:
Given parameters:
Velocity = 30m/s
Deceleration = 4m/s²
Unknown:
Time it takes for the car to come to complete rest = ?
Solution:
To solve this problem, we use the kinematics expression below:
v = u + at
Since this is a deceleration
v = u - at
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time taken
v - u = -at
0 - 30 = -4 x t
-30 = -4t
t = 7.5s
Greenhouse gases
What is Global Warming? Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released by people burning fossil fuels.Jun 3, 2010
Two Sets of solid double yellow lines with spaced two or more feet apart indicates that Do not drive on or over the barrier.
<h3>What are the line colors in lane control?</h3>
Solid yellow lines - it is marked at the center of a road and used for two-way traffic.
Broken yellow lines - It indicate that you may pass if the broken line is next to your driving lane.
Two solid yellow lines - It indicates no passing or Do not drive on or over the barrier.
Two sets of solid double yellow lines are considered a barrier , make a left turn, or a U-turn to cross it.
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Electrical current is the flow of moving charges.
