Compute the net torque on the system about axle of pulley

Reference no: EM13515500

A counterweight of mass m = 4.20 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radius R = 9.00 cm and mass M = 2.90 kg. The spokes have negligible mass.

(a) What is the net torque on the system about the axle of the pulley?

magnitude N · m

direction

(b) When the counterweight has a speed v, the pulley has an angular speed ? = v/R. Determine the magnitude of the total angular momentum of the system about the axle of the pulley.

( kg · m)v

(c) Using your result from (b) and = d/dt, calculate the acceleration of the counterweight. (Enter the magnitude of the acceleration.)

m/s2

Reference no: EM13515500

Questions Cloud

Estimate the new angular speed of the student : A student sits on a freely rotating stool holding two dumbbells, each of mass 3.02 kg, Find the new angular speed of the student

State the general reaction scheme for an amino acid : Draw the general reaction scheme for an amino acid reacting with ninhydrin and then draw the structures for each component in the solvent system of the following

Obtain the new angular speed of the merry-go-round : A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 260 kg · m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round

Explain a salt which has a weak acid as it''s cation : Identify (invent??) a salt which has a weak acid as it's cation and a weak base as its anion so that the salt would yield an acidic solution in water.

Compute the net torque on the system about axle of pulley : A counterweight of mass m = 4.20 kg is attached to a light cord that is wound around a pulley, compute the net torque on the system about the axle of the pulley

How to calculate concentration of chromate ion : Calculate concentration of chromate ion (CrO4) in a 0450 M solution of chromic acid (H2CrO4). (for chromic acid, Ka = .18, Ka2 = 3.2 x 10E-7)

What is the speed of sound in the gas in the tube : One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, and one end admits sound from a tuning fork. What is the speed of sound in the gas in the tube

Define solutions from 6.0 m solution of acetic acid : How will you prepare the following solutions from 6.0 M solution of acetic acid? Give exact details. Assume that a 10-mL graduated cylinder (in which volumes can be read to the nearest 0.1 mL) and a 100-mL graduated cylinder are available.

Estimate the angular momentum of the particle : A 1.80-kg particle moves in the xy plane with a velocity of v = (4.60i ? 3.20j ) m/s. Determine the angular momentum of the particle

User Account

All Pages