A projectile which is launched with an initial velocity from an elevated position and follows a parabolic path to the ground can be investigated by this apparatus.

Technical features:

• The main frame made of anodized aluminum
• With a clamp base vise, opening aperture: 10cm
• Scaled 0-90 degree protractor with Plummet
• Spring with spring constant 50 N/m , 3 different states to achieve different velocities (low velocity 7m/s , medium velocity 10 m/s , high velocity 15 m/s)
• Metallic shooting handle
• With screws to change the angle
• Diameter of shooting aperture: 4cm
• Diameter of Compact plastic bullet : 3cm
• Two U-shaped optical sensors made of bakelite with infra-red receiver and propagator ; 10 LUX
• Approximate weight : 2.8kg , dimensions :10cm × 15cm × 50cm

Chronometer specifications:

• Bench digital chronometer made of compact plastic with wire, on/off switch and safety fuse behind of the apparatus
• Resolution: 0.01 s
• Three input terminals and null key
• weight : 800 g and dimensions : 15cm×20cm×22cm