engineering recuitment HPCL Engineer Mock Test 2024 Engineering Mechanics Kinematics and Kinetics Work Power and Energy
The 2 kg block shown in figure (top view) rests on a smooth horizontal surface and is attached to a massless elastic cord that has a stiffness 5 N/m.
The cord hinged at O is initially unstretched and always remains elastic. The block is given a velocity v of 1.5 m/s perpendicular to the cord. The magnitude of velocity in m/s of the block at the instant the cord is stretched by 0.4 m is
1
0.83
2
1.07
3
1.36
4
1.50