Question

Q1. certain weight is attached with a spring . it is pulled down and then released. it oscillates up and down . its kinetic energy will be
a)max. in the middle of movement
b)max. just befre it is released
c)max. at bottom
d)constant

Q2. Second hand of a watch is 2cm long . the speed of the tip of their hand is
a)0.21cm/s
b)21cm/sec
c)2.1cm/sec
d)none of these

Answer 1

Q1) c) max at the bottom

Q2) d)