27. You, a 60 kg person, are on a rotor, plastered against the wall, and read the angle of your accelerometer to be 25° from the horizontal. While you are slowly getting ill, the floor drops out from under you, and your lab partner counts you going 20 revolutions in 45 seconds. After the ride has stopped, you slowly, but...
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.270 rev/s . The magnitude of the angular acceleration is 0.888 rev/s2 . Both the the angular velocity and angular acceleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.800 m . a) Compute the fan's angular velocity...
An ordinary workshop grindstone has a radius of 7.50 cm and rotates at 6500 rev/min. (a) What is its angular velocity in radians per second? (b) Calculate the centripetal acceleration at its edge in meters per second squared (c) What is the linear speed of a point on its edge?
1.) You whirl a stone in a horizontal circle in such a way that the stone is in uniform circular motion. Which of the following is true for this situation? (Select all that apply.) The change in direction of the stone's motion is due to the centripetal force acting on the stone. The direction of the stone's velocity changes as...
(a) What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 80.0 rev/min in 3.60 s? I need the answers to D and E only.
A car starts from rest and moves around a circular track of radius 32.0 m. Its speed increases at the constant rate of 0.550 m/s2. (a) What is the magnitude of its net linear acceleration 19.0 s later? (b) What angle does this net acceleration vector make with the car's velocity at this time? Question 6 A car starts from...
Please explain with all steps (1 points Question 5 An ordinary workshop grindstone has a radius of 5.19 cm and rotates at 6500 rev/min. Calculate the magnitude of the centripetal acceleration at its edge in meters per second squared Please enter a numerical answer below. Accepted formats are numbers or 'e" based scientific notation g 0.23, 2, 106, 5.23e-8 Enter...
1. A bicycle slows down uniformly from an initial velocity vi = 8.70 m/s to rest over a distance of 125 m. Each wheel has an overall diameter of 690 cm. You can assume that the wheels roll without slipping. (a) Calculate the angular speed of the wheels at the initial instant (t = 0). (b) Calculate the total number of revolutions...
When astronauts launch to space in a rocket they experience large accelerations. To practice working in this environment NASA puts them in a centrifuge: a device that spins them in a circle so that they experience centripetal acceleration. If the astronaut is strapped in 6.0m from the axis and rotates once every. a. What is the angular velocity? b. What...
Consider the 10.5 kg motorcycle wheel shown in the figure. Assume it to be approximately a ring with an inner radius of 0.285 m and an outer radius of 0.345 m. The motorcycle is on its center stand, so that the wheel can spin freely. Part (a) If the drive chain exerts a force of 2050 N at a radius...