Question

A 10 kg block is placed on a frictionless table and connected to a 5 kg block by a string
that extends horizontally across the table over a pulley and down to the 5 kg block. What
is the acceleration of the blocks?​

Answer 1

Answer :

Three blocks of 10kg, 5kg and 5kg are connected as shown in the figure.

We have to find acceleration of the blocks.

$\star$ As per newton's second law of motion, force is measured as the product of mass and acceleration.

Mathematically, F = m a

• F denotes force
• m denotes mass
• a denotes acceleration

★ Net force on the system :

Here only weight force of 5kg mass acts on the whole system.

➝ W = m₁ × g

➝ W = 5 × 10

➝ W = 50N

★ Net mass of the system :

➝ M = m₁ + m₂ + m₃

➝ M = 5 + 5 + 10

➝ M = 20kg

★ Acceleration of the system :

⭆ F = M × a

⭆ 50 = 20 × a

⭆ a = 50/20

⭆ a = 2.5 m/s²

Answer 2

Answer:

a=2.5 m/s2

Explanation:

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