8
 EXAMPLE 1 7
–7
2
2
1 3 10
s
p
p
p
h m
h
t a
e E
=
=
=
×
Thus, the heavier particle (proton) takes a greater time to fall through
the same distance This is in basic contrast to the situation of ‘free
fall under gravity’ where the time of fall is independent of the mass of
the body