Estimate the net torque acting on the ladder

Reference no: EM13536013

A 8.51 -m ladder with a mass of 21.8 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 245 N. At the instant the top of the ladder leaves the ground, the ladder experiences an angular acceleration of 1.81 rad/s2 about an axis passing through the bottom end of the ladder. The ladder's center of gravity lies halfway between the top and bottom ends.

(a) What is the net torque acting on the ladder?

(b) What is the ladder's moment of inertia?

Reference no: EM13536013

Questions Cloud

Estimate the gauge pressure in the inner bubble : An entertainer, when performing a bubble trick, forms one bubble inside another. What is the gauge pressure in the inner bubble

Explain can a perpetual motion machine ever be built : Can a perpetual motion machine ever be built. Consider the Laws of thermodynamics when responding

Find the direction of the balloons initial velocity : In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots. The horizontal distance between the buildings is 32.0 m, and the heights of the Jackson and Walton ..

Explain hydrogen atoms bind to one oxygen atom : In a water molecule, two hydrogen atoms bind to one oxygen atom. How many lone pairs of electrons will be shown around each hydrogen atom in the Lewis structure of water

Estimate the net torque acting on the ladder : A 8.51 -m ladder with a mass of 21.8 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 245 N. What is the net torque acting on the ladder

Direction of the boats velocity relative to the ground : A 270-m-wide river flows due east at a uniform speed of 3.5 m/s. A boat with a speed of 7.6 m/s relative to the water leaves the south bank pointed in a direction 25o west of north. What is the (a) magnitude and (b) direction of the boat's velocit..

Explain reactions for the acid-catalyzed dehydration : I need the important side reactions for the acid-catalyzed dehydration of 2-methycyclohexanol. Also i need the mmol of 2-methylcyclohexanol, phosphoric acid, and isomeric alkene products.

Determine the plate scale and field-of-view : Determine the plate scale and field-of-view for the 8192x8192 pixel MOSAIC imaging camera on the 4-m Mayall Telescope at Kitt Peak Observatory. MOSAIC is a prime focus instrument (f/2.95) and has 15µm pixels

Evaluate the surface charge density : An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm^2, separated by a distance of 1.60 mm. Calculate the surface charge density

User Account

All Pages