What is the magnitude of N

2. A student of weight 656 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force N on the student from the seat is 551 N. a.What is the magnitude of N at the lowest point? b.What is the magnitude of N if the wheel's speed is doubled?

Find the tension in the line

1. The tension at which a fishing line snaps is commonly called the line's "strength." What minimum strength is needed for a line that is to stop a salmon of weight 85 N in 8.0 cm if the fish is initially drifting at 2.5 m/s? Assume a constant deceleration.

Cam mechanisms

Cam mechanisms are used in many machines. For example, cams open and close the valves in your car engine to admit gasoline vapor to each cylinder and to allow the escape of exhaustThe sliding wedge duplicates the function of a rotating eccentric disk on a camshaft of your car. Assume there is no friction between the wedge and th ...continues

A coefficient of Friction problem

A slide loving pig slides down a 37° incline (Fig. 6-24) in twice the time it would take to slide down a frictionless 37° incline. What is the coefficient of kinetic friction between the pig and the slide?

A Coefficient of Friction problem

In Fig. 6-31, two blocks are connected over a pulley. The mass of block A is 12 kg and the coefficient of kinetic friction between A and the incline is 0.17. Angle is 30°. Block A slides down the incline at constant speed. What is the mass of block B?

Spring constant problem

A 230 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.5 N/cm (Fig. 7-30). The block becomes attached to the spring and compresses the spring 14 cm before momentarily stopping. What work is done on the block by the spring force while the spring is being compressed? (in J) What is the ...continues

Reading a Potiential Energy Curve

A single conservation force F(x) acts on a 1.0 kg particle that moves along an x-axis. The potential energy U(x) associated with F(x) is given by: U(x) = -4x e^(-x/4) J, where x is in meters. At x = 5.0m the particle has a kinetic energy of 2.0J. a) What is the mechanical energy of the system? b) Make a plot of U(x) as a ...continues

Angular velocity

please see attachments. ans. A)Wbd = 4.38 rad/sec curving down; Vd = .306 m/sec up. B) Wbd = 0; Vd = 1.05 m/sec down. C) Wbd = 4.38 rad/sec curving up; Vd = .306 m/sec down.

Angular vel, acc.

Please see attachments. Answers given: 2.5 rad/sec; 1.5rad/sec^2; 771mm/sec^2 @ 76.5 deg.

Angular accel.

Please see attachments. Answers given: 3.14 rads/ sec^2; 8 sec