Estimate the childs speed at the lowest position

Reference no: EM13664821

A 21.0 kilogram child on a 3.00 meter long swing is released from rest when the ropes of the swing make an angle of 26.0 degree with the vertical.

(1) Ignoring friction, determine the child's speed at the lowest position.

m/s

(2) If the speed of the child at the lowest position is 2.10 m/s, find the mechanical energy lost due to friction?

Reference no: EM13664821

Questions Cloud

Estimate through how many revolutions does the tub turn : The tub of a washer goes into it's spin-dry cycle, starting from rest and reaching an angular speed of 3.0 rev/s in 13.0 second. Find through how many revolutions does the tub turn during this 22 second interval

Find the angle through which one of these tires will rotate : The tires on a new compact van have a diameter of 2.0 feet and are warranted for 58,000 miles. Find the angle through which one of these tires will rotate during the warranty period

Obtain an output as in the tutorials : Obtain an output (as in the tutorials).

Determine the time required to attain the given speed : A train started from rest and moved with constant acceleration. At one time it was move traveling at 33.0 m/s, and 160 meter farther on it was traveling at 54.0 m/s. Determine the time required to attain the speed of 33.0 m/s

Estimate the childs speed at the lowest position : A 21.0 kilogram child on a 3.00 meter long swing is released from rest when the ropes of the swing make an angle of 26.0 degree with the vertical. determine the child's speed at the lowest position

Find the average power of elevator motor during this period : A 675 kilogram elevator starts from rest and moves upward for 3.40 second with constant acceleration until it reaches its cruising speed, 1.65 m/s. Find the average power of the elevator motor during this period

Discrete probability concepts to determine a course of actio : Given a business situation word problem or case study, such as defective items or waiting lines, use discrete probability concepts to determine a course of action

Find what average frictional force that stops the bullet : A 7.80 gram bullet moving at 540 m/s penetrates a tree trunk to a depth of 6.4 centimeter. Use work and energy considerations to calculate the average frictional force that stops the bullet

Find how much work is done on the cart by the rope : A cart loaded with bricks has a total mass of 18 kilogram and is pulled at constant speed by a rope. Find how much work is done on the cart by the rope

User Account

All Pages