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- Homework Statement
- A 55 g mass is attached to a light string, which is placed over a frictionless, massless pulley, and attached to a 199 gm block which is on a board inclined at 39.3° as shown. Assuming the block starts at rest and the ##\mu_k## between

the incline and block is 0.38, how long will it take the block to move 13 cm?

- Relevant Equations
- ##F_Net=ma##

1. ##-f_k\cos\theta-T\cos\theta+F_n\cos\alpha=m_2a_x##

2. ##f_k\sin\theta+T\sin\theta+F_n\sin\alpha-m_2g=-m_2a_y##

3. ##T-m_1g=m_1a_y##

I am unable to get anywhere. There are accelerations in x , y directions.

I need the value of acceleration. Then I can simply use ##s=ut+\frac12at^2##

2. ##f_k\sin\theta+T\sin\theta+F_n\sin\alpha-m_2g=-m_2a_y##

3. ##T-m_1g=m_1a_y##

I am unable to get anywhere. There are accelerations in x , y directions.

I need the value of acceleration. Then I can simply use ##s=ut+\frac12at^2##

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