Forces and Tension in Systems

The video tutorial explains the dynamics of two systems of particles connected by a light inextensible string over a frictionless pulley. It covers the forces acting on the particles, including weight and tension, and applies Newton's Second Law to derive equations for acceleration and tension. The tutorial solves two problems: one with particles of 5 kg and 4 kg, and another with 6 kg and 3 kg, demonstrating how to calculate the acceleration and tension in each case.

What is the weight force acting on the 5 kg particle?

• 6G

• 9G

• 4G

• 5G

In which direction does the tension act on the 5 kg particle?

• No tension

• Horizontally

• Downwards

• Upwards

What is the resultant force acting on the 4 kg particle?

• T - 4G

• 4G - T

• 4G

• 4G + T

What is the acceleration of the system with the 5 kg and 4 kg particles?

• 4G/9

• 9G/4

• G/9

• G

What is the tension in the string for the system with the 5 kg and 4 kg particles?

• 20G/9

• 9G/20

• 5G

• 4G

What is the weight force acting on the 6 kg particle?

• 9G

• 12G

• 6G

• 3G

In which direction does the system with the 6 kg and 3 kg particles accelerate?

• Towards the 6 kg particle

• Towards the 3 kg particle

• No acceleration

• Horizontally

What is the acceleration of the system with the 6 kg and 3 kg particles?

• G/3

• 3G

• 3G/9

• G

What is the tension in the string for the system with the 6 kg and 3 kg particles?

• 4G

• 2G

• 3G

• 6G

What is the resultant force acting on the 3 kg particle?

• T

• 3G + T

• 3G - T

• T - 3G