Two blocks are connected by a string, The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.7kg. The mass of the hanging block is m=3.2kg. Find the direction and magnitude of the hanging blocks acceleration?

Question

Two blocks are connected by a string, The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.7kg. The mass of the hanging block is m=3.2kg. Find the direction and magnitude of the hanging blocks acceleration?
 
Given
theta = 35 deg
m of incline = 5.7 kg
m of hanging block = 3.2 jg
a = ?

Can we use this equation
 f = mgsin(theta)

David · Accepted Answer

Henry is wrong... lol

Henry · Answer

W1 = mg = 5.7kg * 9.8N/kg = 55.9 N. = Wt of block 1. F1 = 55.9N @ 35 Deg. Fp = 55.9*sin35 = 32 N. = Force parallel to incline. a = Fp/m2 = 32 / 3.2 = 10 m/s^2, Up.