**A crate with a mass of 45 kg is suspended from a massless rope that runs...

**A crate with a mass of 45 kg is suspended from a massless rope that runs vertically upward over a light pulley. The other end of the rope is connected to a 35 kg crate, which lies on a tabletop. The coefficients of the kinetic friction and the static friction between the crate and the surface are 0.3 and 0.5 respectively. An applied force, F, pulls the 35 kg crate to the right.

In the first case, the applied force is just sufficient to keep the crates from sliding. Draw clearly labeled free-body diagrams for each crates including all forces drawn to scale.
How much force would need to be applied in this first case?
In the second case, the 35 kg crate is sliding to the right with a constant velocity. Draw clearly labeled free-body diagrams for each crate including all forces drawn to scale.
How much force would need to be applied in this second case?
In the third case, the 35 kg crate moves to the right at a constant acceleration of 0.5 m/s². Draw clearly labeled free-body diagrams for each crates including all forces drawn to scale. In this instance, draw the direction of acceleration next to each diagram.
How much force would need to be applied in the third case.

Expert Solution

genius_generous answered 2 years ago

A bucket of water of mass 16.0 kg is suspended by a rope wrapped around a...

A bucket of water of mass 16.0 kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.320 m with mass 13.0 kg . The cylinder pivots on a frictionless axle through its center. The bucket is released from rest at the top of a well and falls a distance 10.6 m to the water. You can ignore the weight of the rope. What is the tension in the rope while the bucket...

A bucket of water of mass 15.1 kg is suspended by a rope wrapped around a...

A bucket of water of mass 15.1 kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.330 m with mass 13.0 kg . The cylinder pivots on a frictionless axle through its center. The bucket is released from rest at the top of a well and falls a distance 11.0 m to the water. You can ignore the weight of the rope. a-What is the tension in the rope while the bucket...

Two masses, 4.0 kg and 6.0 kg, are connected by a "massless" rope over a "frictionless"...

Two masses, 4.0 kg and 6.0 kg, are connected by a "massless" rope over a "frictionless" pulley as pictured in the diagram. The ramp is inclined at 30.0 degrees and the coefficient of kinetic friction on the ramp is 0.18. a) determine acceleration of the system once it begins to slide b) determine tension in the rope. Show all work

A 2.15-kg object hangs in equilibrium at the end of a rope (taken as massless) while...

A 2.15-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 18.5-N horizontal force. Find the magnitude of the tension in the rope, and the rope\'s angle from the vertical. The acceleration due to gravity is 9.81 m/s2.

Two boxes with masses m1=5.0 kg and m2=3.0 kg are connected by a massless rope, which...

Two boxes with masses m1=5.0 kg and m2=3.0 kg are connected by a massless rope, which is put over a massless, frictionless pulley. The coefficient of kinetic friction between the incline and the boxes is 0.12 and the coefficient of static friction between the incline and the boxes is 0.25.The angles of the inclines with respect to the horizontal are ?=45** and ?2=30**. Use 9.8 m/s^2 for gravity and assume the incline is fixed in space. a.) Show that the...

A simple pendulum may be described ideally as a point mass suspended by a massless string...

A simple pendulum may be described ideally as a point mass suspended by a massless string from some point about which it is allowed to swing back and forth in a place. A simple pendulum can be approximated by a small metal sphere which has a small radius and a large mass when compared relatively to the length and mass of the light string from which it is suspended. If a pendulum is set in motion so that is swings...

A simple pendulum consists of a particle of mass m suspended by a long, massless wire...

A simple pendulum consists of a particle of mass m suspended by a long, massless wire of length L. Draw a free body diagram for the pendulum bob corresponding to a moment when the bob is located an angular displacement Φ away from (eg. to the right of) equilibrium. Determine an expression in terms of m, g, and Φ for the component of the net force on the bob that points tangent to the path of the bob. Assume that...

In the drawing, the rope and the pulleys are massless, and there is no friction. The...

In the drawing, the rope and the pulleys are massless, and there is no friction. The larger block has a mass of 10.03kg and the smaller block has a mass of 3.85kg.

A bungee jumper of mass 110 kg jumps from a cliff of height 120m. The massless...

A bungee jumper of mass 110 kg jumps from a cliff of height 120m. The massless relaxed bungee cord has a length of 15 m. Ignore the height of the body of the jumper. K=125N/m. (a) Find the velocity of the jumper right before the bungee starts to stretch. (b) Find the distance the cord stretches. Please explain the steps. Thank you!

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the...

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 53 cm below the ceiling. If a 105 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. What is the pan's distance from the ceiling when the spring reaches its maximum length?

Question