Homework Answers
1. A slender rod of mass 0.5 kg and length 0.8 m is released from rest...
1. A slender rod of mass 0.5 kg and length 0.8 m is released from rest in the position shown. The coefficients of kinetic and static friction between the surface and the rod are Ilk = 0.11, and is = 0.2. Determine whether the rod will slip on the horizontal surface. 300
A solid ball of mass 2.0 kg rolls down a hill of slope 38 degree without...
A solid ball of mass 2.0 kg rolls down a hill of slope 38 degree without slipping. Find the acceleration of the ball’s center of mass, the frictional force between ball and ground, and the minimum coefficient of static friction needed to prevent slipping.
The uniform thin rod in the figure below has mass M = 4.00 kg and length...
The uniform thin rod in the figure below has mass M =
4.00 kg and length L = 2.21 m and is free to rotate on a
frictionless pin. At the instant the rod is released from rest in
the horizontal position, find the magnitude of the rod's angular
acceleration, the tangential acceleration of the rod's center of
mass, and the tangential acceleration of the rod's free end.
(a)
the rod's angular acceleration (in rad/s2)
rad/s2
(b)
the tangential acceleration...
A circular hoop of mass m, radius r, and infinitesimal thickness rolls without slipping down a ramp inclined at an angle θ with the horizontal. (Intro 1figure)
A circular hoop of mass m, radius r, and
infinitesimal thickness rolls without slipping down a ramp inclined at an angle θ with the
horizontal. (Intro 1figure)part a)What is the acceleration of
the center of the hoop?Express the acceleration in terms of physical constants and all or some of the
quantities m,r,and θ.part b)What is the minimum coefficient of
(static)friction needed
for the hoop to roll without slipping? Note that it is static and
not kinetic friction that is relevant here,...
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth...
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth wall. The ladder makes a 35.0o angle with the horizontal. Draw an adequate free body diagram of the ladder and determine the minimum coefficient of static friction between the ladder and the ground necessary to prevent the ladder from slipping.
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth...
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth wall. The ladder makes a 35.0 degree angle with the horizontal. Draw an adequate free body diagram of the ladder and determine the minimum coefficient of static friction between the ladder and the ground necessary to prevent the ladder from slipping.
5. A slender rod (mass 1 kg, length L m) is placed vertically on a horizontal rough surface, as shown. The upper end of...
5. A slender rod (mass 1 kg, length L m) is placed vertically on a horizontal rough surface, as shown. The upper end of the rod is tapped lightly, so that it starts falling. Due to friction, its lower end does not slip. When θ 450 with respect to the vertical, show that the normal force N 3.14 N (pointed up) and that the friction force f0.64 N (pointed to the right). Justify results with appropriate diagrams, equations and calculations....
Part A Suppose the rod in the figure has mass m 0.48 kg and length 22...
Part A Suppose the rod in the figure has mass m 0.48 kg and length 22 cm and the current through it is 1 = 33 A (Figure 1) If the coefficient of static friction is μ-053 determine the minimum magnetic field magnitude of B Express your answer using two significant figures. (not necessarily vertical) that will Just cause the rod to slide. Give the Submit Part B Figure 1of1 Give the direction of B relative to the vertical (outwards...
A car of mass M = 1500 kg traveling at 55.0 km/hour enters a level turn...
A car of mass M = 1500 kg traveling at 55.0 km/hour enters a level turn (θ=0), and there is a coefficient of static friction μ between the road and the car's tires. What is μmin, the minimum value of the coefficient of static friction between the tires and the road required to prevent the car from slipping? Assume that the car's speed is still 55.0 km/hour and that the radius of the curve is 65.4 m .
A block with mass m1 = 8.5 kg is on an incline with an angle θ...
A block with mass m1 = 8.5 kg is on an incline with an angle θ = 25° with respect to the horizontal. For the first question there is no friction between the incline and the block. 1)When there is no friction, what is the magnitude of the acceleration of the block? 2)Now with friction, the acceleration is measured to be only a = 2.74 m/s2. What is the coefficient of kinetic friction between the incline and the block? 3)...
1. A slender rod of mass 0.5 kg and length 0.8 m is released from rest in the position shown. The coefficients of kinetic and static friction between the surface and the rod are Ilk = 0.11, and is = 0.2. Determine whether the rod will slip on the horizontal surface. 300
The uniform thin rod in the figure below has mass M =
4.00 kg and length L = 2.21 m and is free to rotate on a
frictionless pin. At the instant the rod is released from rest in
the horizontal position, find the magnitude of the rod's angular
acceleration, the tangential acceleration of the rod's center of
mass, and the tangential acceleration of the rod's free end.
(a)
the rod's angular acceleration (in rad/s2)
rad/s2
(b)
the tangential acceleration...
A circular hoop of mass m, radius r, and
infinitesimal thickness rolls without slipping down a ramp inclined at an angle θ with the
horizontal. (Intro 1figure)part a)What is the acceleration of
the center of the hoop?Express the acceleration in terms of physical constants and all or some of the
quantities m,r,and θ.part b)What is the minimum coefficient of
(static)friction needed
for the hoop to roll without slipping? Note that it is static and
not kinetic friction that is relevant here,...
5. A slender rod (mass 1 kg, length L m) is placed vertically on a horizontal rough surface, as shown. The upper end of the rod is tapped lightly, so that it starts falling. Due to friction, its lower end does not slip. When θ 450 with respect to the vertical, show that the normal force N 3.14 N (pointed up) and that the friction force f0.64 N (pointed to the right). Justify results with appropriate diagrams, equations and calculations....
Part A Suppose the rod in the figure has mass m 0.48 kg and length 22 cm and the current through it is 1 = 33 A (Figure 1) If the coefficient of static friction is μ-053 determine the minimum magnetic field magnitude of B Express your answer using two significant figures. (not necessarily vertical) that will Just cause the rod to slide. Give the Submit Part B Figure 1of1 Give the direction of B relative to the vertical (outwards...
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