The 396-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is F-13311 t^21 N, where t is in seconds. If the car has an initial velocity v 1-2 m/s when t 0, determine determine its velocity when t -3.8s. Express your answer to three significant figures.v₁ = 2 m/sDon't use chatgpt.

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Answered: The 396-kg mine car is hoisted up the…

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

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plot. Note that the force is zero for all the times greater than 3s. The initially stationary 20 kg block is subjected to the time-varying horizontal force whose magnitude P is shown in the Draw Momentum-Impulse diagram showing the impulses of all effective forces and corresponding momentums. 2. Determine the time the block overcomes the friction and starts to slide on the surface. 3. Determine the time t, at which the block comes to rest. 14-0.40) R-0.60 ル my 20g P.N 150 3 1.8
1- The roller coaster car has a brake and return system that has characteristics of a spring with a constant 45 lbs / ft. If the car has an initial velocity of 3 ft / s, determine the total force that the brake and return system must store. Assume that there is no friction, that the travel on the flat (from D to the spring) is 350 feet, and that the test weight of the car with passengers is 1000 Ibs. What does the sign of the answer mean? r=240 ft 90 ft RESORTE 60 ft
The 20-kg crate is stationary at time t = 0. It is subjected to a horizontal force given as a function of time (in newtons) by F = 10 + 2t. Determine how fast the crate is moving at t = 4 s. F Select one: C VEEREELARTATS a. 2.13 m/s. b. 4.13 m/s. c. 5.13 m/s. d. 3.13 m/s. N
2- Each ball has a negligible size and a mass of 5 kg and is attached to the end of a rod whose mass may be neglecte. If the rod is subjected to a torque M=t2+2) N.m. where tis in seconds, determine the speed of each ball when t = 2 s. Each ball has a speed v = 4m / s when t = 0 .
A block of mass m1=6 kg rests on another block of mass m2=20.1 kg and the two are connected by a massless cord passing through a pulley of negligible mass. If there is no friction anywhere in the system, what force F (magnitude) must be applied to m2 so that mjaccelerates to the right at 6.5 m/s2. Express your answer in units of N using zero decimal place. If you need to, take g=9.80 m/s2. m1 m2
Please answer in 15 mins
The motor exerts a constant force of T (N) on the cable. The final speed of the crate of mass m (kg) is v (m/s). Find the equatlon tidl will define the distance x (m) down the plane that the crate will move, starting from rest. The coefficient of kinetic friction between the plane and the crate is 0.3. The final state is at h = 0 m. 0 (degrees) is the angle between the plane and the horizontal. g = 9.81 m/s?. Crate Motor O !mv /(9.81 * m * sind +T - 0.3 * 9.81 * m * cos0) m O mv / (9.81 * m * sin0 +T+0.3 * 9.81 * m * cos0) m O mv /(-9.81 * m * sin0 – T + 0.3 * 9.81 * m * cos0) m O mv /(9.81 * m* cos0 + T – 0.3 * 9.81 * m* sind) m Clear my choice
Under the man's pushing force P= 30.8 lb, the uniform cabinet is sliding on the ground with a constant acceleration of a. If the uniform cabinet has weight of 150 lb, and the coefficient of kinetic friction between the cabinet and the ground is Uk 0.14, determine acceleration a in ft/s2. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 32.2 ft/s². -1 ft→1 ft→ P G 4 ft 3.5 ft В Your Answer: Answer
Solve with FBD. Strictly don't use chatgpt
Answer Two Questions Only Q1// Using the Work and Energy principles Only, solve the following Question: During a test a rocket travels upward at 75 m/s, and when it is 40 m from the ground its engine fails. Determine the maximum height se reached by the rocket and its speed just before it hits the ground. While in motion the rocket is subjected to a constant downward acceleration of 9.81 m/s due to gravity. Neglect the effect of air resistance. -75 mst 4-40m
3 decimal places in final answer pls
The 5kg block is placed on the 10kg block on a frictionless surface. While the 5kg block is tied to the wall with a rope, a 45N force is applied to the 10kg block to the right. Since the friction coefficient between the surfaces of the blocks is 0.2, find the tension on the rope and the acceleration of the 10kg block. (g = 10m / s ^ 2)

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