Answer:
F = 7.143 kN
Explanation:
given,
time taken to apply break = 1.05 s
car slows down from 15 m/s to 9 m/s
mass of the car = 1250 Kg
force is equal to the change in momentum with respect to time.
F = -7142.85 N
F = - 7.143 kN
Force is acting opposite direction of velocity of car i.e. the sign is negative.
Iron is considered a micro-nutrient because only small amounts are required to aid in normal plant growth. ... Plants can suffer iron deficiency with symptoms of chlorosis and stunted growth, but plants can also take in too much iron, especially under certain growing conditions.
There are many types of structural elements. It was seen in an earlier lecture that the support condition has a significant influence on the behavior of the specific element. It is advantagous to identify certain types of structural elements which have distinct characteristics. If an element has pins or hinge supports at both ends and carries no load in-between, it is called a two-force member.
It's really difficult to make out the circuit above. Quite frankly, your
question leaves me to wonder how far 'above' it may be.
The best I can do will be to try and fabricate an answer based on the
information given in the text of the question, augmented only by my own
training, chutzpah, and life experiences.
If the circuit ... wherever it is ... consists entirely of the single 3-ohm
resistance and no other components, and the current through the
resistance is 10 Amperes, then
Voltage = (Current) x (resistance) = 30 volts .
E concave mirror because it reflects the light