A weighing machine consists of a 2 kg pan resting on a spring having l – McqOptions

MCQOPTIONS

1.	A weighing machine consists of a 2 kg pan resting on a spring having linear characterises. In this condition of resting on the spring, the length of spring is 200 mm. When a 20 kg mass is placed on the pan, the length of the spring becomes 100 mm. The un-deformed length L in mm and the spring stiffness k in N/m are
A.	L = 220, k = 1862
B.	L = 200, k = 1960
C.	L = 210, k = 1960
D.	L = 200, k = 2
Answer» D. L = 200, k = 2

Discussion

No Comment Found

Related MCQs

A thin uniform rod of length L and mass M is free to rotate in vertical plane as shown in figure below. The time period of its oscillation in vertical plane is
Four linear elastic springs are connected to mass ‘M’ as shown in Figure. The natural frequency of the system is
A simple spring mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and mass is doubled, then the natural frequency will become
Critical or whirling speed is the speed at which the shaft tends to vibrate violently in ________.
An elastic beam, simply supported at the ends, carries a concentrated mass at the middle of its length. If the natural frequency of the beam neglecting the weight is ωn, considering the weight of the beam the natural frequency of the system will be
A body is vibrating at 10 vibrations/second in Simple Harmonic Motion of 10 cm amplitude. The maximum velocity in cm/sec can be _____.
A pendulum clock calibrated at earth’s surface will read on the surface of the moon (acceleration due to gravity on the moon is 1/6th of that on earth)
A shaft has two rotors mounted on it. The transverse natural frequency considering each rotor separately is 100 Hz and 200 Hz respectively. The lowest critical speed is
In the two-rotor system shown in the figure, (I1 < I2), a node of vibration is situated
Considering massless rigid rod and small oscillations, the natural frequency (in rad/s) of vibration of the system shown in the figure is