Avertical scale on a spring balance reads from 0 to 245 n . the scale has a length of 10.0 cm from the 0 to 245 n reading. a fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.55 hz . ignoring the mass of the spring, what is the mass m of the fish?

9.55 kg

Explanation:

F = 245 N

Let K be te spring constant

F = K x

K = 245 / 0.1 = 2450 N/m

ω = 2 x π x f = 2 x 3.14 x 2.55 = 16.014 rad/s

where m be the mass of fish

m = 9.55 kg

d eras and periods

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards