a 2.5 KG object is placed on a horizontal table is connected to a string that...
a 2.5 KG object is placed on a horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging 7.50 KG object. the coefficient of friction between the table and the 2.5 block is 0.3. find the magnitude of the acceleration of the two objects and the tension in thr string.
Homework Answers
"magnitude of acceleration".
Total acceleration = total force / total mass
= 7.5 * 9.8 / (7.5 + 2.5)
= 7.35m/s^2
This is because the total force is only because of the body that is
hanging (due to gravity). But the total mass that is accelerated is
the sum of both the bodies, because they both are dragged.
The tension in the string is the same as the the force acting on
the second object. Which is mass * acceleration.
= 7.35 * 2.5
= 18.375 N
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