439 kg, including its load. The cart runs along a straight Track Rope stretch of track that climbs a shallow 4.59° incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 426 N force for a distance of 185 m by means of a rope that is parallel to the slope but makes an angle of 14.3° with A „Track incline the track. .Horizontal ground Model the rolling resistance of the cart as though it were sliding on the track with a coefficient of friction of 0.0159. Use g = 9.81 m/s², and note that angle A in the image is the angle of the incline while angle B is the angle the rope makes with the track. Find the work Wa that the donkey performs on the cart during this process.

. A 25kg wooden plate is held in place by two strings attached to the ceiling and the wall. The string attached to the ceiling makes an angle 40° with the horizontal and the string attached to the wall makes 90° with the wall. Determine the force in each string.

Two crates of fruit  are released from the top of a ramp inclined at 30 degrees from the horizontal and 4.5 meter long. The two crates consist of  an apple crate of mass 20 kg that is placed in front of a watermelon crate of mass 80 kg.  The apple crate has a coefficient of friction of 0.20 while the watermelon crate has a coefficient of friction of 0.15. How long does it take the apple crate to reach the bottom of the incline if it needs to travel a distance of 4.5 meters?

A block moves on an inclined surface with an initial speed of 1.6 m/s. After sliding down the incline of distance of L=2 m, the speed of the block is 2.2 m/s. the coefficient of friction between the block and the surface is 0.34. find the angle of the incline