For a body moving with simple harmonic motion, the number of cycles per second, is known as its Oscillation Frequency Periodic time Amplitude TRUE ANSWER : ? YOUR ANSWER : ?
A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be Zero 1.0 m/sec 2.0 m/sec 0.5 m/sec 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 24 m/sec 6 m/sec 12 m/sec 48 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
When a body moves round a fixed axis, it has A rotary motion A rotary motion and translatory motion A circular motion A translatory TRUE ANSWER : ? YOUR ANSWER : ?
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is n/2 rpm 2n rpm n/4 rpm n rpm TRUE ANSWER : ? YOUR ANSWER : ?
Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is 2/3 1/3 1/5 3/5 TRUE ANSWER : ? YOUR ANSWER : ?
A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is 1.57 m/sec 3.14 m/sec 6.28 m/sec 1.00 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
The pole distance is measured in mass scale time scale force scale distance scale TRUE ANSWER : ? YOUR ANSWER : ?
A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration As it strikes the ground Elsewhere At the start At the top of the trajectory TRUE ANSWER : ? YOUR ANSWER : ?
The angular speed of a car while taking a circular turn of radius 100 m at 36 km/hour, is 1 radian/sec 1000 radian/sec 0.1 radian/sec 100 radian/sec TRUE ANSWER : ? YOUR ANSWER : ?