Answer:
The tension is 384 N.
Explanation:
To calculate the acceleration, we know the velocity and the time, so:
a=Δv/t
To calculate the tension we need to apply Newton's second law:
∑F=m*a
The speed would increase by however much the acceleration due to gravity is. On earth, I believe that is 32ft/s or 9.8m/s
Newton’s Second Law: Force = mass times acceleration.
F = 0.145 * 130
You would multiply to find the force required, not divide. Hope this helps!
Answer:
0.99 seconds
Explanation:
The problem depicts a simple harmonic motion.
Now, from Hooke's law,
The spring constant is given as;
k =F/x
where:
x is the displacement of the spring's end from its equilibrium position
F is the restoring force exerted by the spring on that end
From the question, F = 20N while x = 10cm = 0.1m. Thus,
K = 20/0.1 = 200 N/m
Now, time to take for the mass to return to its starting point is a period
The period oscillation of the mass is given as;
T = 2π√m/k
Where m = mass = 5kg
T = 2π√(5/200)
T = 0.99 s
