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Find acceleration of block and tension in strings if m1 =8kg m2= 4kg and take g=10m/s² |
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Answer» TION.=> Mass of block¹ = m¹ = 8kg=> Mass of block² = m² = 4kg=> g = 10m/s²To find the acceleration and tensionin string.=> As we KNOW that first we draw F.B.D of block=> then the block¹ = m¹ moves downward and acceleration is also MOVE downward in the DIRECTION of m¹.=> equation will be written as. => 8G - T = 8a ....... (1) => T - 4g = 4a ....... (2) From equation (1) and (2) we get, => 4g = 12a => 4 X 10 = 12a => 40 = 12a => a = 40/12 = 10/3 m/s²put the value of a = 10/3 in equation (2) we get, => T - 4g = 4 X 10/3 => T - 40 = 40/3 => T = 40/3 + 40 => T = 40 + 120 / 3 => T = 160/3 NTherefore,=> Acceleration = 10/3 m/s².=> Tension = 160/3 N. |
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