The eriodic time of a simple
pendulum is given by T=2π(√(L/g)).
if L=100±0.1cm(s.e) and the
time s for 10 ossilations are:
48.2,48.2,48.7,48.5,48.4,48.2,48.4,
48.6,48.5,48.2.
calcukate g and the standard
error involved.
A horizontal force of 0.8N is
required to pull a 5kg block across
a table top at a constant speed.
With the block initially at rest,a
20g bullet fired horizontally into
the block to slide 1.5m before
coming to rest again.Determine
the speed v of the bullet,where
the bullet is assumed to be
embedded in the block.
Two masses m and 2m,approach
each l along a path at right
angle to each other and move off
at 2m/s at angle 37° to the
original direction of mass m.
What where the initial speeds of
the two particles?
A block of wood of mass 0.6kg is
balanced on top of vertical port
2m high.A 10g bullet is fired
horizontally into the block and
the embedded bullet land at a 4m
from the base of the port.Find
the initial velocity of the bullet.