2.24 A block o.1 m square, with 5 kg mass, slides down a smooth incline, 30° below the horizontal, on a film of SAE 30 oil at 20°C that is 0.20 mm thick. If the block is released from rest at t = 0, determine its initial acceleration. Derive an expression for the speed of the block as a function of time. Plot the curve for V(t). Find the speed after o.1 s. If we want the mass to instead reach a speed of 0.3 m/s at this time, find the viscosity u of the oil we would have to use.

2.24 A block o.1 m square, with 5 kg mass, slides down a smooth incline, 30° below the horizontal, on a film of SAE 30 oil at 20°C that is 0.20 mm thick. If the block is released from rest at t = 0, determine its initial acceleration. Derive an expression for the speed of the block as a function of time. Plot the curve for V(t). Find the speed after o.1 s. If we want the mass to instead reach a speed of 0.3 m/s at this time, find the viscosity u of the oil we would have to use.

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

The case where the rocket has alinear air drag force F= cV , where c is a constant. Assumingno burnout, solve for ω ( t ) and find the terminal angularvelocity—that is, the final motion when the angular accelerationis zero. Apply to the case M 0 = 6 kg, R = 3 m, m =0.05 kg/s, V e = 1100 m/s, and c = 0.075 N ? s/m to find theangular velocity after 12 s of burning.
QUESTION 5 Which of the following gives the nearest value for the maximum deflection of the spring, in mm? 72.5 67.5 75 70
A block A of 10 kg attached to a spring with K=200 N/m is moving downward along the slope. At this position, the spring is un-stretched, and the downward velocsity is 5m/sec. The slope is at an angle of 30 degrees, and force, F is 100 N applied. Find the distance when block A stops.
i need the answer quickly
The figure shows a pendulum bob that is moving in a vertical plane. At an angle theta 0° it has a velocity of 8m/s. The bob has a mass of 2kg, what is the tension in the rope holding the bob at its initial position and when it reaches an angle theta 30°? Neglect the size of the bob.
mache
weighs 60 N on Earth. (3). A system consists of a pulley (vertical wheel) that is only allowed to rotate (spin). A cord is passed over the pulley and at each end there is a mass attached to the end of the cord. The mass attached on the left is m, =0.6 kg and at the right the mass is m2 = 0.8 kg. a) Calculate both the Tension in the cord and the acceleration of the system. b) What are the accelerations of both masses, if you were to cut the cord? Neglect the friction between cord and wheel,
Please help me with this problem and show the written solution. Thank you very much
Q1 A balloon is rising vertically above a level, straight road at a constant rate of 1 ft sec. Just when the balloon is 65 ft above the ground, a bicycle moving at a constant rate of 17 ft sec passes under it. How fast is the distance s(t) between the bicycle andoballoon increasing 3 sec later?
In a free-fall experiment, an object is dropped from a height of 144 feet. A camera on the ground 500 feet from the point of impact records the fall of the object. Assuming the object is released at time t = 0. Find the rate of change of the angle of elevation of the camera when ? = 1.
hi Vo Vo V₁ = R - he A ball will be thrown from the initial position (pictured in green) to strike a target (pictured in red) while avoiding contact with the ceiling. The initial height is hi - 5 m, the ceiling is he - 25 m tall, and the target = = is ht = 20 m above the ground. The target is R = 40 ht m away, horizontally. Find the minimum initial speed V₁ that can achieve this m/s
X=0.772