16 Define simple harmonic motion. Write down
the expressions for the velocity and
acceleration...
Physics, 18.03.2021 02:50 kaileedeacosta1
16 Define simple harmonic motion. Write down
the expressions for the velocity and
acceleration of such motion at the different
positions along its path. A body vibrating
with simple harmonic motion has a frequency
of 4 Hz and an amplitude of 0.15 m. Calculate
a. the maximum values of the acceleration
and velocity
b. the acceleration and velocity at a point
0.09 from the equilibrium position of motion.
17 A coil spring is stretched 9 cm when a mass of
18 kg is suspended from it. Calculate the force
constant of the spring. A body suspended from
the coil when set in vibration is observed to
oscillate vertically with a frequency of 1.5 Hz
Calculate the mass of the body.
Answers: 3
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Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
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Answers: 3
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