Fletcher Trolley

Product Code : LSK-AM-11104

Fletcher Trolley (SKU LSK-AM-11104) is an all-metal apparatus in which a weighted trolley, pulled by a falling scale pan, runs on two steel rails while a vibrating steel strip with a brush traces its motion. The trace lets students measure acceleration and verify Newton's second law under different loads. It is used in Class 11 physics, B.Sc. mechanics and engineering physics labs. Science Lab Supplies manufactures the trolley at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, supplying institutions, contractors and distributors direct.

Specifications

Two 150 cm steel rods form the track, held in heavy clamps on two vertical rods mounted on cast iron feet. A large metal trolley with removable cylindrical weights runs on wheels with very little friction. A steel vibrator is fitted to one vertical rod and a frictionless pulley to the other.

Applications and Experiments for the Fletcher Trolley

The Fletcher trolley is used to verify that acceleration is proportional to the applied force and inversely proportional to the mass being accelerated. Changing the load in the scale pan or the cylindrical weights on the trolley lets the law be tested under different conditions in school and college mechanics practicals.

• Class 11 physics: Newton's second law of motion, F = ma.
• Measuring uniform acceleration from the trace left by the vibrator brush.
• B.Sc. and engineering physics: effect of mass and force on acceleration.

Standard Scope of Supply

The apparatus is complete with the two 150 cm steel rails, the clamps, vertical rods and cast iron feet, the metal trolley with removable cylindrical weights, the steel vibrator, the frictionless pulley, cord, scale pan, brush and ink. The apparatus assembles and dismantles easily.

Packing, MOQ and Lead Time

As a science apparatus manufacturer in India, Science Lab Supplies can quote for one Fletcher trolley or for several sets for a mechanics lab. Each quotation gives packing, delivery time and price for the quantity requested, and extra masses or related apparatus can be added.

Under its Importer-Exporter Code, Science Lab Supplies is able to ship to buyers in Sri Lanka, Vietnam, Malaysia, Peru, Egypt and Iraq. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Enquire on the contact page, fill the enquiry cart, or read the lab tender page.

Frequently Asked Questions

What does the Fletcher Trolley demonstrate?
It demonstrates Newton's second law of motion. A load in the scale pan pulls the trolley along the steel rails, and the vibrator trace shows the acceleration, which can be compared for different forces and masses.

How is time recorded?
A steel vibrator fixed to one vertical rod carries a brush with ink. As the trolley moves, the vibrating brush leaves a wavy trace whose spacing shows how far the trolley travels in each vibration.

Can the trolley mass be changed?
Yes. The large metal trolley carries removable cylindrical weights, so its mass can be varied while the pulling load in the scale pan is kept constant, or the other way round.

Does Science Lab Supplies manufacture the Fletcher Trolley?
Yes. The rails, trolley and fittings are made at the Science Lab Supplies factory in Saha, Ambala, India, and all quotations come straight from the manufacturer.

Related Motion and Dynamics Apparatus

The items below cover the same motion, energy and rotation topics as the Fletcher trolley. They add a trolley on an inclined track, energy conversion, rotational inertia and a mass set for loading, so a mechanics lab can combine them on one quotation.

• Inclined Plane, Euro — trolley on a grooved wooden track.
• Maxwell Wheel — conversion of potential into kinetic energy.
• Fly Wheel — moment of inertia of a wheel on ball bearings.
• Laboratory Slotted Masses, 2.5 kg — masses for loading.

Browse the full Applied Mechanics range or all physics lab equipment.

Last updated: 25 September 2026