Explanation:
initial velocity= 80km/hr = 22.22 m/s
distance= 40m
Final velocity= 0m/s ( as it needs to be stopped)
<u>Using </u><u>third </u><u>equation </u><u>of </u><u>motion</u><u>,</u>
=> 2as = v² - u²
=> 2a * 40m = 0² - (22.22 m/s)²
=> a = - 493.72/80 m/s²
=> a = - 6.17m/s²
<u>Using </u><u>first </u><u>equation </u><u>of </u><u>motion</u><u>,</u>
=> a = v - u /t
=> -6.17 = 0-22.22/t
=> t = -22.22/-6.17 s
=> t ≈ 3.7 s = stopping time
This would be called the battery. Hope this helps.
Answer:
D. All of the above
Explanation:
Think about it.
Can you see how big or small an object is? Unless in very special cases, the ordinary person can.
Can you see the color of an object? Unless you are color blind (missing color recepticles in your eyes), then yes you can.
Can you see the motion of an object? Unless the object is not moving, or you cannot see, then yes.
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Answer:
The velocity of other mass is 3.60 m/s.
Explanation:
Given that,
Mass of first block = 8 kg
mass of second block = 4.3 kg
Speed = 6.7 m/s
We need to calculate the speed of first mass
Using conservation of momentum
where, m₁ =mass of first block
m₂ =mass of second block
m₁ =mass of first block
v₂ =speed of second block
Put the value into the formula
Negative sign represent the opposite direction of initial value.
Hence, The velocity of other mass is 3.60 m/s.
A "constellation" is the total, full, complete thing in the night sky ...
ALL of the stars that go together to make up the complete dog or
the queen or the fish or the bear, or whatever else the story of
that particular part of the sky involves.
An "asterism" is a small, easily recognized group of stars, that
can be spotted right away, although they're only a small part
of a constellation.
The Big Dipper, the Little Dipper, Orion's Belt, and the Great Square
are asterisms. They're parts of the constellations of the Big Bear,
the Little Bear, Orion the Great and Mighty Hunter, and Pegasus,
respectively.
