Magnitude of the force exerted on the peg by the ladder

Reference no: EM13650052

A uniform ladder is 10m long and weighs 400 N. It rests with itsupper end against a frictionless vertical wall. Its lower end rests on the ground and is preventedfrom slipping by a peg driven into the ground. The ladder makes a 30? angle with the horizontal.The magnitude of the force exerted on the peg by the ladder is:

A. zero
B. 200N
C. 400N
D. 470N
E. 670N

Reference no: EM13650052

Questions Cloud

Ketching the three primaryrays for diverging lenses : An object 4.0 cm high is placed 12 cm in front of a diverginglens that has a focal length of – 8.0 cm. Describe by calculation the location, nature (real or virtual andupright or inverted), and size of the image for this location.

Professor enters the dogsled race during winter break : Your professor enters the dogsled race during winter break. To getstarted, he pulls his sled, a mass 80 kg with a force of 180N at 20degrees to the horizontal. Find a) the work he does b) the final speed of the sled after it moves 30s

Find the magnitude of the downward velocity : A tennis ball of mass 57.0 g is held just above a basketball of mass 590 g. With their centers vertically aligned, both balls are released from rest at the same time, to fall through adistance of 2.00 m.

List the electricalcharge-baryon number and electron lepton : List the electricalcharge, baryon number, and electron lepton number for the following particles

Magnitude of the force exerted on the peg by the ladder : A uniform ladder is 10m long and weighs 400 N. It rests with itsupper end against a frictionless vertical wall. Its lower end rests on the ground and is preventedfrom slipping by a peg driven into the ground. The ladder makes a 30?

Answering machine takes an ac voltage of amplitude : A transformer for an answering machine takes an acvoltage of amplitude 150 V as its inputand supplies a 7.9 V amplitude to the answering machine. The primary has 400turns.

Estimating the proportion of trees : A paper company is interested in estimating the proportion of trees in a 500-acre forest with diameters exceeding 2 feet. The company selects 25 plots (100 feet by 100 feet) from the forest and utilizes the information from the 25 plots to help..

Use the internet or the strayer library to research : Use the Internet or the Strayer Library toresearch articles onstrategic managementof Apple Inc

Process strategy at wheeled coach : Process Strategy at Wheeled Coach

User Account

All Pages