Two masses are being pulled up a 30.0 degrees incline by a force F parallel to the incline.The acceleration down the incline is 1.00 m/s² and the velocity is up the incline.The force is applied to a 200 kg mass and a string connects the 200 kg mass to a 150 kg mass.There is no friction.The tension in the string is A) 2070 N. B) 1470 N. C) 980 N. D) 771 N. E) 1,710 N.

Question

Quizplus · Accepted Answer

The tension in the string is equal to the force applied to the 200 kg mass minus the force of gravity on the 200 kg mass. The force of gravity on the 200 kg mass is mg*sin(30), where m is the mass and g is the acceleration due to gravity. The force applied to the 200 kg mass is F. Therefore, the tension in the string is F - mg*sin(30). Plugging in the given values, we get T = 2000 N - 200 kg * 9.8 m/s^2 * sin(30) = 2070 N.

Two Masses Are Being Pulled Up a 30