Question 3: A block moves outward along the slot in the platform with a speed of r = r = 4t m/s, where t is in seconds. The platform starts at rest and accelerates at a constant rate of 6 rads/s². If the block starts from rest at the center, determine the magnitude of its acceleration when t = 1s. 8 = 6 rad/s
Q: The spinning rate of a CD-ROM varies according to the location of the disc from where data is being…
A: First,we convert revolutions per minute into radians per second. 1 rpm=2π60=π30 rad//s Hence,…
Q: A centrifuge is rotating at 5000 rev/min when a brake is applied causing a deceleration of -5.0…
A:
Q: Gibbons, small Asian apes, move by brachiation, swinging below a handhold to move forward to the…
A:
Q: A construction worker pulls a five-meter plank up the side of a building under construction by means…
A: Given:l = 5mv=-0.14 m/sh=1.8 m
Q: A bicycle wheel has a radius r = 0.28 m and rotates at a constant frequency of f = 89 rev/min.…
A: The period of rotation of the wheel is
Q: If the man pulls the strap with constant acceleration during a short time interval Δt, calculate the…
A: Vf=1.9m/s R=0.4m M=2.4kg ∆t=0.3sec
Q: Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and…
A: Solution-
Q: A record is spinning around on a record player and has a period of 4.00 s. The record has a diameter…
A:
Q: A light, rigid rod is 75.5 cm long. Its top end is pivoted on a frictionless horizontal axle. The…
A: Given, Length of rigid rod=75.5 cm Let speed at the lowest point is Ui m/s
Q: A car of mass m=1500kg is moving down a level road. It comes to a hill whose cross section is semi…
A:
Q: 1. In 1986 at the European Athletics Championship, Yuriy Sedkyh set the world record for men's…
A: Given data : hammer weight = 7.26kg time for final revolution t = 0.5 second Radius R = arm…
Q: A centrifuge accelerates uniformly from rest to 19000 rpm in 280 s . Part A Through how many…
A:
Q: The tires of a car make 88 revolutions as the car reduces its speed uniformly from 104 km/h to 63…
A: We need to calculate how much more time it takes for the car to stop.
Q: An automobile engine slows down from 3400 rpm to 1200 rpm in 2.3 s. Part A Calculate its angular…
A:
Q: A child is swinging a 0.300-kg ball on a string. She is swinging it in a circle with an angular…
A:
Q: Gear A is given an angular acceleration αA= 3t³ rad/s², where t is in seconds, and (WA)o= 23 rad/s…
A:
Q: A plastic disc is flicked up a sloping board. It has an initial speed of 1.6 ms-1, but gradually…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: #11. A ball rolls along the smooth track shown in figure. Each segment of the track is straight, and…
A: The motion of the ball is divided into three parts Part 1 The object moving on the horizontal…
Q: A block of mass m is released from rest at a height R above a horizontal surface. The acceleration…
A: Given: mass of the block = m the radius of the hoop = R the initial height of…
Q: Gibbons, small Asian apes, move by brachiation, swinging below a handhold to move forward to the…
A:
Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…
A: The objective of the question is to determine the angular velocity, linear velocity, angular…
Q: Exercise 9.16 At t = 0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant…
A:
Q: 3. Go-karts have a mass of 70.0 kg. A person with a mass of 50.0 kg rides inside. The go-kart track…
A: The frequency will be = 0.042 Hz.
Q: om above). When switched off, it rotates through 48.0 revolutions before coming to rest. Assuming it…
A: We know that the third equation of the angular motion is given as ω=ω0+2αθα= ω-ω02θ…
Q: A 34.6-gram Hot Wheels car is moving along the ground with a speed of 2.57 m/s. It approaches a hill…
A: The hot wheel car rolls back after the rolls up along the inclined hill due to its weight. Thus,…
Q: You have your bicycle upside down while you adjust the chain. The chain is wound around the rear…
A:
Q: Here in Columbus, we're living through a heat wave with an expected heat index of 110 degrees today.…
A:
Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…
A: The objective of the question is to determine the angular velocity, linear velocity, angular…
Q: A 5-m ladder leans against a wall. Assume the bottom slides away from the wall at a rate of 0.9 m/s.…
A:
Q: The platform is rotating about the vertical axis such that at any instant its angular position is 0…
A:
Q: A long string is wrapped around a 6.3-cm-diameter cylinder, initially at rest, that is free to…
A:
Q: to a lightweig Laut string which keeps it in circular motion, as shown in the igure The disk slides…
A: Given: The mass of the disk is 0.180 kg. The initial speed of the disk is 70 cm/s. The initial…
Q: car starts from rest and accelerates at a constant rate until it reaches 90 mi/hr in a distance of…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- A centrifuge in a forensics laboratory rotates at an angular speed of 3,750 rev/min. When switched off, it rotates 54.0 times before coming to rest. Find the constant angular acceleration of the centrifuge (in rad/s). Consider the direction of the initial angular velocity to be the positive direction, and include the appropriate sign in your result. |rad/s2A uniform solid cylindrical log begins rolling without slipping down a ramp that rises 26.8° above the horizontal. After it has rolled 7 m along the ramp, what is the magnitude of its linear acceleration? Express your answer in m/s², to at least one digit after the decimal point.A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the center. The turntable is turned on and 1.4 s later it has an angular speed of 33 rpm. Assume the angular acceleration is constant and determine the following quantities for the ant 0.7 s after the turntable has been turned on. Express all quantities using appropriate mks units. a => W = V= atan arad a= Fnet
- A light rod is 88 cm long. Its top end is pivoted on a low-friction horizontal axle. The rod hangs straight down at rest with a small massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity so that it swing around in full circle. What minimum speed (m/s) at the bottom is required to make the ball go over the top of the circle? Round your answer to 2 decimal places.A 0.500 kg particle moves in a circle of radius 0.150 m at constant speed. The time for 20 complete revolutions is 31.7 s. What is the period T of the motion? What is the speed of the particle?A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s4. What is the time interval required for it to reach a 4.2-rad displacement after starting from rest? 1.8 s B 16 s C) 2.0 s D 18 s
- The tires of a car make 82 revolutions as the car reduces its speed uniformly from 96 km/h to 63 km/h. The tires have a diameter of 0.70 m. If the car continues to decelerate at this rate; how much more time is required for it to stop? (Your result must be in seconds and include 1 digit after the decimal point. Maximum of 2% of error is accepted in your answer.)A light, rigid rod is 50.2 cm long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity so that it swings around in a full circle. What minimum speed at the bottom is required to make the ball go over the top of the circle? m/sA Ferris wheel rotating at 25 rad/s slows down with a constant rate of magnitude 3.7 rad/s2. How many revolutions does it make before coming to a stop? Express your answer to 1 decimal place.
- The power to electric motor rotating at 600 rpm is cut off. If the magnitude deceleration of the centrifuge is 2.3 rad/s2 how many revolutions does it make before coming to rest?Please answer it within 30 minutes. I will upvote! Problem: A car initially traveling at 29.2 m/s undergoes a constant negative acceleration of magnitude 1.40 m/s2 after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.305 m. NOTE: Answer of (a) must differs from the correct answer by more than10%. (b) What is the angular speed of the wheels when the car has traveled half the total distance? NOTE: Answer of (b) must differs from the correct answer by more than10%.You are at a playground with a merry-go-round, which is initially sitting still. You push on it, causing it to accelerate in the angle at a rate of 1.2 rad/s2. If you push for 3 seconds How many radians will the merry-go-round have turned through during that time?