Imagine the motion of the human forearm in throwing a dart

Assignment Help Physics
Reference no: EM13659314

Imagine the motion of the human forearm in throwing a dart. Because of the force M applied by the triceps muscle, the forearm can rotate regarding an axis at the elbow joint. Suppose that the forearm has the dimensions 0.28m from axis of elbow to dart pin and 0.025m from axis of elbow to muscle. The moment of inertia is 0.065kg/m2 (including the effect of the dart)relative to the axis at the elbow. Suppose also that the force M acts perpendicular to the forearm. Ignoring the effect of gravity and any frictional forces, Decide the magnitude of the force M needed to give the dart tangential speed of 5.0 m/s in 0.10s, starting from rest.

Reference no: EM13659314

Questions Cloud

Solenoid of radius-discover its inductance : A solenoid of radius 2.2 cm has350 turns and a length of 17 cm. Discover its inductance. Find the rate at which current should change through it to produce an emf of 75 mV.
How far from the van is the object really located : The owner of a van installs a rear-window lens that has a focal length of -0.310 m. When the owner looks out during the lens at an object located directly behind the van, the object appears to be0.260 m from the back of the van, and appears to be 0.3..
Decide the magnitude of the doors angular acceleration : A rotating door is made from four rectangular sections.  The mass of all section is 85kg.  A person pushes on the outer edge of one section by a force of F = 68N that is directed perpendicular to the section.  All section measures 1.2m from the axis ..
Vertical wall with a hinge at one end : A horizontal beam 4m long is attached to a vertical wall with a hinge at one end, and a body of weight 500N hangs from the outer end. The beam is supported with a guy wire from its outer end to the wall directly above the beam.
Imagine the motion of the human forearm in throwing a dart : Imagine the motion of the human forearm in throwing a dart. Because of the force M applied by the triceps muscle, the forearm can rotate regarding an axis at the elbow joint. Suppose that the forearm has the dimensions 0.28m from axis of elbow to dar..
Suppose that the collision is entirely elastic : An object (A) of mass 0.1 kg strikes a second objects (B), of mass0.3 kg that is initially at rest. Mass A has an initial velocity of+ 2 m/s. Suppose that the collision is entirely elastic. Compute and describe the final velocities for the two object..
What is the kinetic energy of the proton : In a certain cyclotron a proton moves in a circle of radius 0.900 m. The magnitude of the magnetic field is 1.50 T. What is the kinetic energy of the proton? What is the oscillator frequency?
Negligible heat loss during the sides of the bar : One end of a brass bar is maintained at 296°C, while the other end is kept at a constant however lower temperature. The cross-sectional area of the bar is4.00 10-4 m2. Because of insulation, there is negligible heat loss during the sides of the bar.
Compute hoops angular velocity : A 2.00 kg hoop with a radius of 0.0750 m was placed at the top of a3.00 m long ramp. The top of the ramp was 0.800 m above the lower end of the ramp. The hoop rolled down the ramp. Compute hoops angular velocity

Reviews

Write a Review

Physics Questions & Answers

  What is his speed when he catches up

A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.27 m/s. What is his speed when he catches up

  A federation starship

A Federation starship ( 2.20×10^6kg ) uses its tractor beam to pull a shuttlecraft ( 2.20×10^4kg ) aboard from a distance of 12.0km away. The tractor beam exerts a constant force of 4.0×104N on the shuttlecraft. Both spacecraft are initially at..

  As a bacterium swims through water it propels

As a bacterium swims through water it propels itself with its flagella so as to overcome the frictional drag forces and move at, more or less, constant velocity of 100 micrometers/s for periods of time. If the frictional drag force on a bacterium is ..

  Index of refraction-what is the angle of refraction

Light passes from medium A into medium B at an angle of incidence of 44 degrees. The index of refraction for A is 1.25 times that of B. What is the angle of refraction? Express your answer using two important figures. What is the ratio of the speed o..

  What is the mutual inductance of these solenoids

One solenoid is centered inside another. The outer one has a length of 48.0cm and contains 6600 coils, What is the mutual inductance of these solenoids

  What is the new force of attraction between the two objects

Suppose that two objects attract each other with a gravitational force of 16 units. If the distance between the two objects is doubled, what is the new force of attraction between the two objects

  At what speed does laser light move across the moon surface

A laser beam aimed from the earth is swept across the face of the moon. at what speed does the laser light move across the moon's surface

  Determine the power developed by the water in SI units

ccccthe Zambesi river in Africa rushes over Victoria Falls at a rate of 25 x 10^6 gallons per minute. The falls are 108 m high, 1 gallon equals 3.785 x 10^-3 m^3 (or 0.1337 cubic foot), and the water has a density of 1.00 x 10^3 kg/m3 (each cubic foo..

  What is the amplitude of the motion

A girl rides an escalator that moves her upward at a constant speed. As the girl rises, how do her gravitational energy and kinetic energy change.

  Calculate the frequency of the dampened oscillation

A 11.2 kg object oscillates at the end of a vertical spring that has a spring constant of 1.90 104 N/m. Calculate the frequency of the dampened oscillation

  Determine the recovery time of the unit

The recovery time of a hot water heater is the time required to heat all the water in the unit to the desired temperature. determine the recovery time (in hours) of the unit

  Calculate the angular magnification

A 3.80-mm-wide bolt is viewed with a9.30-cm-focal-length lens. A normal eye views the image at its near point. Calculate the angular magnification

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