To solve this problem it is necessary to apply the kinematic equations of motion and Hook's law.
By Hook's law we know that force is defined as,

Where,
k = spring constant
x = Displacement change
PART A) For the case of the spring constant we can use the above equation and clear k so that




Therefore the spring constant for each one is 11876.92/2 = 5933.46N/m
PART B) In the case of speed we can obtain it through the period, which is given by

Re-arrange to find \omega,



Then through angular kinematic equations where angular velocity is given as a function of mass and spring constant we have to




Therefore the mass of the trailer is 4093.55Kg
PART C) The frequency by definition is inversely to the period therefore



Therefore the frequency of the oscillation is 0.4672 Hz
PART D) The time it takes to make the route 10 times would be 10 times the period, that is



Therefore the total time it takes for the trailer to bounce up and down 10 times is 21.4s
Answer:
a average load current = 11.33 A
b rms load current = 8.02A
c true power =962.64 W
d apparent power =962.64 W
e. power factor cosθ =1
Explanation:
Vs (t) = 170 sin(377t) v
Vm =170v
Vrms = 170/√2 =120.23 v
Im = Vm/R = 170/15 = 11.33 A
Irms = Im/ √2 = 11.33/√2 =8.02A
Resistors are electronic components that consume energy
the power in a resistor is given by P =IVcosθ ; in a resistor cosθ =1
P =IV
The electrical power consumed by a resistance, (R) is called the true or real power
and is obtained by multiplying the rms voltage with the rms current.
P= Vrms × Irms
120.03×8.02
P= 962.64 W ; true power
apparent power = Vrms × Irms
=120.03×8.02
= 962.64W ; apparent power
power factor cosθ = true power/ apparent power
cosθ = 962.64/962.64
cosθ = 1
For the purely resistive circuit, the power factor is 1 , because the reactive power is equal to zero (0).
Answer: The unit of impulse is applied to an object produces an equivalent vector change in its linear momentum, also in the same direction.
Explanation:
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