Using the addition of forces using right angled triangles. The resultant force sqaured. = 112.8 sqaured + 52.6 squared. So resultant force sqaured is 15490.6. So the resultant force is the sqaure root of this which is 124N to 3 significant figures
The speed of the system when it passes through the equilibrium position is
, and this corresponds to the maximum speed of the oscillator.
The angular frequency of the oscillator is given by
where k is the spring constant, and m the mass. Substituting the data, we find
and since the amplitude of the oscillation, A, is related to the maximum speed by
we can re-arrange this equation to calculate A:
Terminal velocity is the velocity at which a falling body experience
when its weight is equal to the force resistance of force opposing the
fall.
At terminal velocity the acceleration of the body is zero,
which implies that the value of the this velocity is a uniform.
Answer:
west
Explanation:
The acceleration of an object is equal to the rate of change of velocity of the object, and it is given by:
where
u is the initial velocity
v is the final velocity
t is the time elapsed
For the object in this problem:
u = 65 m/s east is the initial velocity
v = 25 m/s east is the final velocity
t = 10 s is the time elapsed
Substituting, we find the acceleration:
And the negative sign tells that the direction of the acceleration is opposite to the direction of the velocity: so, the acceleration is west.