What average force must the archer exert

Assignment Help Physics
Reference no: EM13556944

When an archer pulls an arrow back in his bow, he is storing potential energy in the stretched bow.

(a) Compute the potential energy stored in the bow, if the arrow of mass 4.50 x 10^-2 kg leaves the bow with a speed of 39.0 m/s. Assume that mechanical energy is conserved.

(b) What average force must the archer exert in stretching the bow if he pulls the string back a distance of 30.0 cm?

 

Reference no: EM13556944

Questions Cloud

Estimate the runoff from the watershed into the lake : A 5 km2 lake does not have a defined input but receives runoff from its watershed (25 km2). The area receives 60 cm/yr in precipitation. Evaporation from the lake surface is 10 cm/yr with watershed evapotranspiration of 20 cm/yr.
Evaluate the power provided by the weight lifters force : A weight lifter raises a 1021 N weight a vertical distance of 1.60 m in a time interval of 2.20 s. Compute the power provided by the weight lifter's force
Evaluate what is the depth of the well : You sing into a well and find that the well resonates at frequencies of 187 Hz and 221 Hz with no resonances between these two frequencies. What is the depth of the well
Compute with what frequency do these waves meet the dock : Suppose that water waves coming into a dock have a velocity of 1.3 m/s and a wavelength of 2.2 m. With what frequency do these waves meet the dock
What average force must the archer exert : When an archer pulls an arrow back in his bow, he is storing potential energy in the stretched bow. What average force must the archer exert in stretching the bow if he pulls the string back a distance of 30.0 cm
What is the buoyancy force felt by the lead ball : You have a beach ball which has a radius of 25 cm and a mass of 0.5 kg. You have a lead ball which has the same radius but has a mass of 120 kg. what is the buoyancy force felt by the lead ball
What is the equation for the wave : A wave has the following properties: amplitude = 0.222 m, period = 0.593 s, wave speed = 16.1 m/s. The wave is traveling in the -x direction. What is the equation for the wave
Compute the work done by the force lifting the ladder : A ladder 2.85 m long, weighing 228 N, initially lies flat on the ground. Compute the work done by the force lifting the ladder
Obtain the resultant gravitational force on the mass : A 1.05 kg mass is at the center of a uniform spherical shell of mass 1.10 x 10^20 kg and radius 1.03 x 10^6 m. Find the resultant gravitational force on the mass

Reviews

Write a Review

Physics Questions & Answers

  Find out the rotational inertia of this object

Find out the rotational inertia of this object (a) about an axis through the center of the triangle and perpendicular to its plane (b) and about an axis that passes through one vertex and the midpoint of the opposite side.

  Find the maximum energy that the electron can have

In beta decay, a neutron decays into a proton, an electron, and a neutrino, What is the maximum energy that the electron can have? The neutrino?

  Determine the frequency of circling

An electron with kinetic energy 1.56 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 23.0 cm. Find the frequency of circling

  Calculate the position x(t), and acceleration a(t)

The velocity of an object undergoing linear drag and no other forces can be described as: v(t)=v0e^t/?, Calculate the position x(t), and acceleration a(t) of the particle as a function of time t

  Determine the mutual inductance

A 3.83m -long coil containing 225 loops is wound on an iron core (average ?=1850?0) along with a second coil of 115 loops, Determine the mutual inductance M. (units of H)

  What is the tangential velocity of the bug

What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 80.0 rev/min in 3.60 s

  What total horizontal distance can this ball travel

A ball is shot from level ground into the air. At a height of 9.1 m, its velocity is given by v=(7.6m/s) + (6.1m/s), What total horizontal distance can this ball travel

  What is the new charge density on the outside of the sphere

A hollow, conducting sphere with an outer radius of 0.260m and an inner radius of 0.198m has a uniform surface charge density of +6.70×10^?6 C/m^2. What is the new charge density on the outside of the sphere

  Compute the magnitude of the earths magnetic field

A 45-m length of wire is stretched horizontally between two vertical posts. Find the magnitude of the earth's magnetic field at the location of the wire

  What is the weight of the truck

A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, What is the weight of the truck

  Find the magnitude of the angular acceleration of the stick

A stick is resting on a concrete step with 2/9 of its length hanging over the edge. find the magnitude of the angular acceleration of the stick

  What is the speed of the tip of the large rotor

The diameters of the main rotor and tail rotor of a single-engine helicopter are 14.4 m and 2.14 m, respectively. What is the speed of the tip of the large rotor

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