Question

Determine the velocity of block A when block B is moving downward with a speed of 10 m/s.

Answer 1

Answer on Question #71734-Physics-Mechanics-Relativity

Determine the velocity of block A when block B is moving downward with a speed of $10\mathrm{m / s}$ .

Solution

$$v _ {B} = \frac {d l}{d t}.$$ $$v _ {A} = \frac {1}{2} \frac {d l}{d t}.$$ $$v _ {A} = \frac {1}{2} v _ {B} = \frac {1}{2} 1 0 = 5 \frac {m}{s}.$$

The velocity of block A is

$$\boldsymbol {v} _ {A} = (4 \boldsymbol {i} + 3 \boldsymbol {j}) \frac {m}{s}$$

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