A 150 kg safe on frictionless casters is being raised at 1.20m to the bed of a truck using planks 4m long. The force needed to p
1 answer:
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Explanation:
As the given data is as follows.
h =
=
Also, we know that r =
and Volume (V) =
=
=
And,
Putting the given values into the above formula as follows.
[tex]\frac{dh}{dt} = 1.343 m/min
or, = 134.3 cm/min (as 1 m = 100 cm)
thus, we can conclude that the height changing at 134.3 cm/min when the pile is 2 m high.
Answer:
Finley, Xander and Max
Explanation:
v = Final velocity
t = Time
u = Initial velocity = 0
a = Acceleration
From kinematic equations we get
Xander
v = 4.5 m/s, t = 3.5 s
Finley
v = 3.6 m/s, t = 4.2 s
Max
v = 7.3 m/s, t = 1.2 s
The required list is Finley, Xander and Max.