1. A first class lever in statistics equilibrium has a 75 Ib resistance force and a 20 Ib effort force. The lever's effort force
1 answer:
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Answer:
Explanation:
We know that Drag force
Where
is the drag force constant.
A is the projected area.
V is the velocity.
ρ is the density of fluid.
Form the above expression of drag force we can say that drag force depends on the area .So We should need to take care of correct are before finding drag force on body.
Example:
When we place our hand out of the window in a moving car ,we feel a force in the opposite direction and feel like some one trying to pull our hand .This pulling force is nothing but it is drag force.
Answer:
moment of inertia = 4.662 * 10^6
Explanation:
Given data :
Mass of machine = 400 kg = 400 * 9.81 = 3924 N
length of span = 3.2 m
E = 200 * 10^9 N/m^2
frequency = 9.3 Hz
Wm ( angular frequency ) = 2 = 58.434 rad/secs
also Wm = ------- EQUATION 1
g = 9.81
deflection of simply supported beam
t =
insert the value of t into equation 1
W =
make I the subject of the equation
I ( Moment of inertia about the neutral axis ) =
I = = 4.662 * 10^6
Answer:
TOTAL ENERGY = 0.74 j
Explanation:
Given data:
spring constant is 350 N/m
m = 0.24 kg
b = 0.41 kg/s
A = 0.075 M
after one full cycle, mass will be at extreme point, hence K,E = 0
But total energy remain same
y after one full cycle is\
y = 0.06517 m
y = 6.517 cm
total energy