Question

a bullet of mass 20g hits a block of mass 1.98 kg suspended from a massless string of length 100cm and stics to it. the bullet flies down at an angle of 30 degree to the horizontal with a velocity of 200 m/s. through what height the block will rise?

Answer 1

how are not sure about your experience as you

Answer 2

rise in height = l-lcos∅

now l=100cm=1m

and ∅=30°

∴h=1-1cos30°

⇒1-√3/2

≅0.15m