MS-117 PVG DYNAMICS TROLLEYS

Hard wood reinforced with metal at the ends, length 300 mm.,
with three ball bearing wheels, a quick release triple impulse spring
pin, with two removable metal pins at each end to enable trolleys
of equal mass to be stacked or to give anchoring points for
accelerating cords.
ELASTIC CORDS
For accelerating trolleys, rubber length 175 mm. with eyelet at
both ends.
TROLLEY MASSES
Steel mass equal to the mass of one trolley, with rubber pads. This
reduces the number of actual trolleys.
SPRINGS – Steel springs to use with dynamic trolleys in the
investigation of longitudinal wave motion, length x diameter 50 x
15 mm. Attached by spring holders to the front or rear of a dynamic
trolley. In this way a number of trolleys can be joined together.
SPRING HOLDER
For attaching up to four springs side by side to the back and front of
wooden trolleys. Metal plate 115×15 mm. length x width with hole
at each end and with two central side metal flaps.
TROLLEY RUNWAY
Gives a smooth flat easily inclinable surface for experiments. With
metal side rails and plastic feet. Dimensions -1.5 x 0.3 M.