pls answer NO. 24 *draw FBD *use data given below properly
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pls answer NO. 24
*draw FBD
*use data given below properly
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- n engineer is designing a spring to be placed at the bottom of an elevator shaft. If the elevator cable breaks when the elevator is at a height H above the top of the spring, calculate the value that the spring constant k should have so that passengers undergo an acceleration of no more than 9.0g when brought to rest. Let N be the total mass of the elevator and passengers. Spring constant k that the spring should have so that passengers undergo an acceleration of no more that 9.0g1. If the initial position and initial velocity of a vehicle are known and a record is kept of theacceleration at each instant, can you compute the vehicle's position after a certain time fromthese data? If so, explain how this might be done.Bodies A and B shown in the figure are connected to each other by two ropes. Body b is located on the frictionless surface. Acismi moves down from the stop position at T=0 with a constant acceleration of 100 mm/sec2. t = 2 sec how many mm do Bodies A and B move, respectively? в A Please select one: a.200 mm down, 50 mm right b.200 mm down, 200 mm right c.200 mm down, 800 mm right d. None of them e.200 mm down, 400 mm right
- KOREK a "la KOREK + HW2 SOLUTION: Write the kinematic relationships for the dependent motions and accelerations of the blocks. • Write the equations of motion for the blocks and pulley. 300 kg B Combine the kinematic relationships with the equations of motion to solve for the The two blocks shown start accelerations and cord tension. from rest. The horizontal plane and the pulley are frictionless, and the pulley is assumed to be of negligible mass. Determine the acceleration of each block and the tension in the cord. 12 12A flywheel starts from rest and uniformly accelerated at 0.1rev/s² for 25 seconds, It then rotates with uniform velocity for next 20 revolutions Calculate ()maximum angular velocity: (ii) total time taken. (Enter only the values in the boxes by referring the units given in bracket. Also upload the hand written copy in the link provided) 17 Solution 1.The maximum angular velocity in (rad/s) is 2.The total time taken in (seconds) isCurrent Attempt in Progress In an archery test, the acceleration of the arrow decreases linearly with distances from its initial value of 15400 ft/sec² at A upon release to zero at B after a travel of 31.1 in. Calculate the maximum velocity v of the arrow. Answer: v= i Save for later Bl 31.1" ft/sec Attempts: 0 of 3 used Submit Answer
- A train started moving from rest with a constant acceleration, and at one time it was traveling at a speed of sec/m30 and after a distance of 160m it was traveling at a speed of sec/m50. Find: 1: the wheel. 2: The time it takes to reach its velocity sec/m30.A block with a mass of 2.0kg is on a horizontal surface of negligible friction. The block is attached to one end of an ideal spring. The other end of the spring is attached to a vertical wall as shown. The block is pulled back and released from rest. The graph shows the horizontal position x of the block as a function of time t as the block oscillates on the surface. The block is moving to the right when it breaks away from the spring moving with its maximum linear speed. The block reaches an area with a rough surface that has a coefficient of kinetic friction of 0.200. Calculate the distance the block moves on the rough surface as it comes to rest. If he block is then replaced with a cylinder of radius 0.25 m and mass 2.0 kg, which is attached to the spring along an axis through its center. The cylinder is placed on a new surface, which allows it to roll while in oscillation. The cylinder is pulled back until the spring is stretched the same distance as in the previous experiment,…At a certain point in the reentry of the space shuttle into the earth's atmosphere, the total acceleration of the shuttle may be represented by two components. One component is the gravitational acceleration g -9.65 m/s² at this altitude. The second component equals 10.98 m/s² due to atmospheric resistance and is directed opposite to the velocity. The shuttle is at an altitude of 46.1 km and has reduced its orbital velocity of 28300 km/h to 16230 km/h in the direction 0-1.92°. For this instant, calculate the radius of curvature of the path and the rate i at which the speed is changing. Answers: p- V= 1 km m/s²
- A flywheel with radius of 0.400 m starts from rest and accelerates with a constant angular acceleration of 0.400 rad/s^2. For a point on the rim of the flywheel, what is the magnitude of the tangential acceleration after 2.00 s of acceleration? For a point on the rim of the flywheel, what is the magnitude of the radial acceleration after 2.00 s of acceleration? What is the magnitude of the resulant acceleration for this point after 2.00 s of acceleration?ft A 10 lb block has an initial speed of v = 4 . A force of F = 8 · t lb is applied. The coefficient of kinetic friction between the block and surface is u = 0.2. V1 F = f(t) Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value 30 ft Using equations of motion in rectangular coordinates, a. Find an equation for the block's horizontal acceleration as a function of t, a(t), when the block moves s = 30 ft. b. Find an equation for the block's velocity as a function of t, v(t) , when the block moves s = 30 ft. c. Determine the time it takes for the block to move s = 30 ft. i. Use a solver/graphing calculator to solve for the Quartic Function d. Determine the velocity of the block at s = 30 ft. %3DRequired information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 2500-ib automoble is moving at a speed of 50 ml/h when the brakes are fully appled, causing all four wheels to skid. Determine the time required to stop the automobile on dry pavement (k= 075). The time requtred to stop the automobile is 23 Os.