A pair of these trolleys are used for investigation on momentum velocity,
acceleration etc. Both the trolleys are identical and each consists of a two rectangular wooden blocks 300 mm long
moving on
three low friction wheels. The trolley is fitted with spring loaded impulse rod. Rod has three positions to
provide different
impulses which is triggered by a release pin, In the front of each trolley two holes are drilled
and fitted with corks. With
removable metal pins at each end to enable trolleys to be stacked or to provide anchoring
points for accelerating cords.
(a) Trolleys with rubber wheels fitted with ball bearing (b) Trolleys
with plastic wheels fitted on bushes
