Answer:
The horizontal speed is approximately 29 m/s.
Explanation:
Given that; range = 80 meters, height = 37 meters.
The horizontal speed can be determined by:
R = U
Where R is the range, U is the velocity of the object, H is the height and g is the acceleration due to gravity (9.8 m/).
So that:
80 = U
= U
= U
80 = 2.747912U
⇒ U =
= 29.1130
U ≅ 29 m/s
The horizontal speed is approximately 29 m/s.
There could be more than just one answer, since kilograms can be converted to grams, to miligrams, etc.
or
Why?
Let's remember some conversion factors to work with kilograms (kg)
So, we are given the momentum:
We can rewrite the units of the momentum (equivalent) as follow:
and
Note: There could be more equivalent units for the momentum, in example, we could work with equivalent units for meters (distance) and seconds (time).
Have a nice day!
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Answer:
557.7Nm
Explanation:
We are given that
Radius,r=1.9 m
Angular speed,
Time,t=3.5 s
Initial angular velocity,
We have to find the large torque would have to be exerted .
Where
Substitute the values