The box with a weight of 6 lb slides down the smooth surface that has a circular portion AB. If the speed of the box is 8 ft/sec at A, calculate the magnitude of the normal force acting on the box at C. Present your answer in lb using 3 significant figures. The following relations may be useful: sin(A + B)=sin A cos B+cos A-sin B cos(A + B) = cos A cos B sin A-sin B B 45° 8= 30° 20 ft 8 ft/s A 45°

The box with a weight of 6 lb slides down the smooth surface that has a circular portion AB. If the speed of the box is 8 ft/sec at A, calculate the magnitude of the normal force acting on the box at C. Present your answer in lb using 3 significant figures. The following relations may be useful: sin(A + B)=sin A cos B+cos A-sin B cos(A + B) = cos A cos B sin A-sin B B 45° 8= 30° 20 ft 8 ft/s A 45°

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Determine the velocity of the ball at point A Determine how far the ball will land from the edge of the table (x) If the ball lands on a small bug, which will have the greater force: the bug or the ball? Explain fully
A man holds and drops the two equal masses without moving his arm’s length on a rotating table then the angular velocity is
The box has a mass of 50 kg and is at rest. When it is pulled with 1000 N it reaches speed of 5m/s. how far will the box move? Neglect friction.
When the 10 lbm box reaches point F it has a speed vF=3o ft/s. Determine the normal force the box exerts on the surface when it reaches point M. Neglect friction and the size of the box
the 75 n crate is released from rest in incline surface at time t=0. The coefficient of kinetic friction between the crate and the surface is 0.14. How fast the crate is moving at t=1.5s
A wheel tractor has a 200 HP engine. Calculate the available rimpull of this tractorif it is operating at an altitude of 1,000 m. above sea level, at an averagetemperature of 25oC, and at an average speed of 12 km/hr. Take rimpull efficiencyas 85%.
When the 75 kg skier is at point A, she has a speed of 1.5m/s. Neglecting frictionand air resistance, and using a cosine curve for the slope (as shown in the figure):(a) Determine her speed when she reaches point B on the smooth slope.(b) What is the normal force on her skis at B, and her rate of increase in speed?
The super-container vessel has a total mass displacement of 23000 long tons. This vessel towed by a tugboat with α=20⁰ angle with horizontal. If a constant tension is applied as F=320 kN by the tugboat, please calculate the time to bring the vessel to a speed of 2 knot from the rest. At these low speeds, please neglect the hull resistance that created by the motion. Note: (1 long tons = 1016.05 kg, 1 knot=1.151 mi/hr= 0.5144 m/s)
The 4-lb collar is compressed against a spring a distance of 6 inches and then releasedfrom rest. The spring can be considered elastic and has a constant of k = 10 lb/in. Thespring is not adhered to the collar, and can be considered massless, so it will notextend into tension. Plot the acceleration of the collar as a function of x for x = 0 to 7 inches.What is the velocity as the collar leaves the spring?
The disc weighing 5 kg was tied with an unextended elastic cord of 0.5 m in length, as shown in the figure. As the disk passes through point B, its speed is vB=5 m/s and the length of the elastic cord is r=1.5 m. a) Determine the speed of the disc when r = 1.2 m, b) the shortening speed of the elastic cord when r = 1.2 m.
Two very large sheets of width W and length L meet athorizontal position and separated between them by a distance B. Betweenthem is a Newtonian fluid. The lower one movesslowly at a speed V, while the upper one remainsstill. The pressure difference can be considered negligible.Calculate:a. the value of the average speedb. the force exerted by the fluid on the stationary surface
In a movie scene involving a car chase, a car goes over the top of a rampat A and lands at B below. Determine the speed of the car at A if the car is to coverdistance d = 150 ft for α = 20◦ and β = 27◦. Neglect aerodynamic effects.