A pulley has a string holding two masses which both hang straight down. If the mass on the left is 2.2 kg and the mass right is 3.8 kg, find the tension in the string. Your Answer:
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- Jason is pulling a box across the room. He is pulling with a force of 24 newtons and his arm is making a 69 angle with the horizontal, what is the horizontal component of the force he is pulling with?An 18.5 lb box is placed on the ground. What force (in lb) does the ground exert on the box? (magnitude and direction). A cord is attached to the box and run through a pulley directly above the box, so that the cord is vertical. The free end of the cord is then connected to a hanging weight. Calculate the force exerted by the ground on the box (in lb), if the hanging weight is 12.0 lb (magnitude and direction) A 29.0 lb weight is substituted for the 12.0 lb weight. Calculate the new force (in lb) exerted by the floor on the box (magnitude and direction).The Earth pulls on the Moon with an average force of 2.0×10^20 N. (A number that is literally astronomically large.) The Moon in turn pulls on the Earth with a force of _____ N.
- Block A has a mass of 10.0 kg, block B has a mass of 11.0 kg, block C has a mass of 12.0 kg. If there is an applied force of 18.0 N, find the magnitude of the tension in the rope between blocks A and B Ignore friction. (Input your answer with 1 decimal place) A B TA man pulls a cement block with a force of 450N using a rope that makes an angle of 35.0 degrees above the horizontal. What is the x-component of his pulling force?The gymnast weighs 427 N and is suspended motionless from two spring scales, each of which has negligible weight. What do the two spring scales read?
- An elevator of mass 300 kg is caused to accelerate upward at 2.5 m/s2 by a force in the cable that supports it. What is the force exerted by the cable (in N) ?What is the normal force on an object weighing 437 N at rest on an inclined plane with an angle of 29 degrees?A 74.1-kg crate is suspended between the floor and the ceiling using two spring scales, one attached to the ceiling and one to the floor. If the lower scale reads 120 N, what is the reading of the upper scale? Ignore the weights of the scales.