Topic: Newton's laws, force and inertia, momentum, impulse· Laws of Motion

Two bodies of mass 4 kg and 6 kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity (g) is :

Atwood machine: 4 kg and 6 kg masses over a pulley

1. g

2. g/2

3. g/5

4. g/10

Doubtly Asked 30 Oct 2026 NEET UG 2020 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 3. g/5

Atwood machine: the heavier mass moves down, and both masses share the same acceleration.

$$a=\frac{(m_2-m_1)g}{m_1+m_2}=\frac{(6-4)g}{6+4}=\frac{g}{5}$$

Answer: option 3.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?

Two bodies of mass 4 kg and 6 kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity (g) is :

1 answer

Your answer