(3) A stack of two crates is being lifted upwards by two cables, as shown in the figure below. The tension in each cable is 2270 N. You may assume that the masses of the cables are negligible compared to the masses of the crates. Do not use Newton's 3rd Law. (a) Using Newton's 2nd Law, calculate the force that the top crate exerts on the bottom crate and the force that the bottom crate exerts on the top crate. (answer: Fbottom-on-top = Ftop-on-bottom= 3062 N) (b) The maximum tension that each cable can handle without breaking is 3230 N. Calculate the maximum upward acceleration that the load can have without breaking the cables. (answer: 8.97 m/s²) 232 kg 112 kg

Jason is pulling a box across the room. He is pulling with a force of 24 newtons and his arm is making a 63 angle with the horizontal, if the box weighs 23 newtons what is the net force on the box in the vertical direction? Treat up as the positive direction, and down as the negative direction. Answer value

The glue on a piece of tape can exert forces. Can these forces be a type of simple friction? Explain, considering especially that tape can stick to vertical walls and even to ceilings.

Two ropes apply a force to a boat. The first is 200 N in the positive x direction, and the second is 250 N in the positive y direction. At what angle must a third rope tension be applied in order to keep the boat at rest? Your Answer:

(Questions 16-18) A 25 kg box is at the bottom of a frictionless incline that is 7 m long as shown and makes an angle of 20 degrees with the horizontal. A person applies a constant horizontal (NOT parallel to the incline, but horizontal) force to the box, starting from rest. It reaches the top of the ramp in 13 seconds. 16. Draw a free-body diagram of this situation showing all forces on the box. 17. What was the magnitude of the box's acceleration during this process? 18. What was the magnitude of the force applied by the person?

If the bird's mass is 82 g, what is the maximum net vertical force exerted on the bird?Can someone help me solve these two questions? I thought it was a direct plug into f=ma.

Question 2 To give a 22-kg child a ride, two teenagers pull on a 3.5- kg sled with ropes, as indicated in the figure (Figure 1). Both teenagers pull with a force of 55 N at an angle of 35° relative to the forward direction, which is the direction of motion. In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. You may want to review (Pages 134 - 136) . Part A Find the acceleration of the sled and child. Express your answer using two significant figures. Hν ΑΣφ ? a = m/s? Submit Request Answer Provide Feedback Figure 1 of 1 55 N 35° 57 N a 35° 55 N