Find how fast will she be moving at bottom of the swing

Assignment Help Physics
Reference no: EM13538937

A 25.0kg child plays on a swing having support ropes that are 1.80m long. A friend pulls her back until the ropes are 45.0 (degrees) from the vertical and releases her from rest.

Part A How fast will she be moving at the bottom of the swing?

Reference no: EM13538937

Questions Cloud

Obtain the change in kinetic energy of the crate : A crate of mass 11.5 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, What is the change in kinetic energy of the crate
Explain synthesize 2-butanol from an aldehyde : Synthesize 2-butanol from an aldehyde and a grignard reagent.Show two possible routes to the product.
Explain the percent yield of elemental sulfur : What is the percent yield of elemental sulfur if 7.54 grams of sulfur are obtained from the reaction of 6.16 grams of SO2 with an excess of H2S. 2H2S + SO2---> 2H20 +3S
Explain what is the entropy change for a particle : A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.808 times that of the initial number of microstates
Find how fast will she be moving at bottom of the swing : A 25.0kg child plays on a swing having support ropes that are 1.80m long. How fast will she be moving at the bottom of the swing
Calculate how long does the light bulb stay lit : A 1500 kg mass is lowered 200 m and as it is lowered it runs a generator which lights a 100 watt light bulb.how long does the light bulb stay lit
Explain standard atmospheric pressure : The instruction booklet for your pressure cooker indicates that its highest setting is 13.4 . You know that standard atmospheric pressure is 14.7 , so the booklet must mean 13.4 above atmospheric pressure
What is moment of inertia of the block about rotation axis : A uniform disk of mass Mdisk = 4.7 kg and radius R = 0.22 m has a small block of mass mblock = 2 kg on its rim. It rotates about an axis a distance d = 0.16 m from its center intersecting the disk along the radius on which the block is situated.
What is the speed of the diver : An 82.0 kg skydiver jumps out of a balloon at an altitude of 1 280 m and opens the parachute at an altitude of 190 m. what is the speed of the diver when he lands on the ground

Reviews

Write a Review

Physics Questions & Answers

  Find the rate at which work is done by you

You exert a force as shown in the diagram to push a large crate of books (about 1 m high, m = 45.0 kg) across a rough floor at constant speed v = 0.650 m/s. Find the rate at which work is done by you

  Find the magnitude of book velocity

Find the magnitude of book's velocity, just before the book reaches the floor. Find the direction of book's velocity, just before the book reaches the floor.

  Direction angle of a vector

The direction angle of a vector is defined as its positive angle relativeto the positive x-axis.

  Find the difference in blood pressure

The blood speed in a normal segment of a horizontal artery is 0.162 m/s. What is the difference in blood pressure between the normal and constricted segments of the artery

  Determine the plates mass.

A square plate has a side length of 1.2 m. An applied torque of 300 N•m gives the plate an angular acceleration of 4.8 rad/s2 about an axis through the centre of the plate

  What is the final velocity vector of the ball

Imagine that the cannon from Problem #1 is actually firing into a strong wind, What is the final velocity vector of the ball when it lands

  Estimate the initial temperature of the hot horseshoe

A hot iron horseshoe (mass = 0.50kg ), just forged, is dropped into 1.50L of water in a 0.30kg iron pot initially at 25.0?C. estimate the initial temperature of the hot horseshoe

  What is the increase in potential energy of the spring

A spring with a spring constant k of 18 N/m is stretched a distance of 12 cm (0.12 m) from its original unstretched position

  Determine the angular frequency of the charge oscillations

A 16.0 microF capacitor and a 5.20mH inductor are connected in series with an open switch. What is the angular frequency of the charge oscillations in the capacitor after the switch is closed

  Calculate the ground state energy and corresponding speed

Calculate the ground state energy and corresponding speed of a particle of mass 1.0 g in a box of length L=10.0 cm assuming the particle in a box model. Compare these quantities with those of an electron in a box of length 1.0 ..

  Determine the vertical compression of the beam

A steel beam is placed vertically in the basement of a building to keep the floor above from sagging. Find the vertical compression of the beam

  What is the friction force that acts on the firefighter

What is the friction force that acts on the firefighter?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd