Answer:
Prefixes often added to S. I. units because this system is globally accepted
Explanation:
S.I. is abbreviation for international system. International system of units is globally accepted. Thus, on international platform all physical quantities should be represented in S.I. system of units.
There are 7 fundamental units in S.I system 2 supplementary and many derived units are included in S.I. system.
While using another system of units create confusion on international level. Thus, to avoid confusion all prefix are added to S.I. system.
It depends on Mass and velocity
Answer:
resultant force = 59 N
Explanation:
we know the formula: <em>Force = mass * acceleration</em>
Force = 25 kg * 2.36 m/s²
Force = 59 N
Answer:
<em>155.80rad/s</em>
Explanation:
Using the equation of motion to find the angular acceleration:
is the final angular velocity in rad/s
is the initial angular velocity in rad/s
is the angular acceleration
t is the time taken
Given the following
Time = 4.1secs
Convert the angular velocity to rad/s
1rpm = 0.10472rad/s
6100rpm = x
x = 6100 * 0.10472
x = 638.792rad/s
Get the angular acceleration:
Recall that:
638.792 = 0 + ∝(4.1)
4.1∝ = 638.792
∝ = 638.792/4.1
∝ = 155.80rad/s
<em>Hence the angular acceleration as the blades slow down is 155.80rad/s</em>
I think the answer would be A