Instantaneous center is at infinity when the angular velocity is Minimum Constant Maximum Zero TRUE ANSWER : ? YOUR ANSWER : ?
A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is 12.0 J 4.5 J 18.0 J 9.0 J TRUE ANSWER : ? YOUR ANSWER : ?
If the linear velocity of a point on the rim of a wheel of 10 m diameter, is 50 m/sec, its angular velocity will be 5 rad/sec 20 rad/sec 20 rad/sec 10 rad/sec TRUE ANSWER : ? YOUR ANSWER : ?
Cartesian form of the equation of catenary is y = c sin x/c y = c sinh x/c y = c tan x/c y = c cosh x/c TRUE ANSWER : ? YOUR ANSWER : ?
Rate of change of angular momentum is equal to Force Impulse Torque Linear momentum TRUE ANSWER : ? YOUR ANSWER : ?
A rigid body is in a stable equilibrium if the application of any force Neither raises nor lowers the CG of the body Can raise the CG of the body but cannot lower it Tends to lower the CG of the body None of above TRUE ANSWER : ? YOUR ANSWER : ?
A particle moves in a straight line and its position is defined by the equation x = 6 t² - t3 where t is expressed in seconds and ‘x’ in meters. The maximum velocity during the motion is 6 m/sec 48 m/sec 24 m/sec 12 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, theni. a force is required to move the body upwardsii. a force is required to move the body downwardiii. the body will not be in equilibriumThe correct answer is only (ii) only (i) both (i) and (ii) both (i) and (iii) TRUE ANSWER : ? YOUR ANSWER : ?
If ‘α’ is the angular acceleration of a compound pendulum whose angular displacement is ‘θ’, the frequency of the motion is 2π √(α/θ) 2π √(α - θ) (1/2π) √(α/θ) 4π √(α/θ) TRUE ANSWER : ? YOUR ANSWER : ?
A particle moving with a simple harmonic motion, attains its maximum velocity when it passes Through the mean position None of these The extreme point of the oscillation Through a point at half amplitude TRUE ANSWER : ? YOUR ANSWER : ?