Answer:
if the frequency of the wave if tripled then period of wave gets tripled
<span>Force = Work done / distance = 4Nm / 2m = 2N</span>
Answer:
x=2d
Explanation:
initial stretch in the spring is d
so using Hook's law
at equilibrium position
k×d=mg
where k= spring constant
m= mass of fish
g= acceleration due to gravity.
d=mg/k ................ (1)
in second case by energy conservation
1/2 kx^2=mgx
x=2mg/k
using equation 1
x=2d
Question 2 is because the passengers have inertia, which is a tendency to resist change in motion
