Solution:
From conservation of linear momentum, velocity of combined mass just after collision will be , as mass has doubled.
Now,
A mass of 10 g moving horizontally with a velocity of strikes a pendulum bob of mass 10 g. Length of string is 50 cm. The two masses stick together. The maximum height reached by the system now is (Take, )
From conservation of linear momentum, velocity of combined mass just after collision will be , as mass has doubled.
Now,