Purchase Solution

Spring supporting two blocks without friction

Not what you're looking for?

Ask Custom Question

A 0.7 lb block rests on top of a 0.5 lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is sudenly removed.
A) Determine the maximum velocity reached by the 0.5 lb mass
B) the maximum height reached by the 0.5 lb mass

Please see attachment

Purchase this Solution

Solution Summary

The solution calculates maximum velocity and maximum height.

Solution Preview

See attached file

From the spring formula kx=mg
where k= spring constant =9 lb/ft
x= displacement from normal position=x2
mg= weight acting on the spring in this case 0.7+0.5=1.2 lb

Solving 9 x2= 1.2 lb unstretched
0r x2= 2/15 ft x2

A) Determine the maximum velocity reached by the 0.5 lb mass

Energy stored in the spring = 1/2 k x 2 = 1/2 k* (2/15) 2 = 2/25 ft-lb

Maximum velocity is obtained when all the energy stored in the spring is converted totally to Kinetic energy
ie 1/2 k x 2 = 1/2 m v 2

m=W/g=0.5/32= 1/64 ...

Purchase this Solution

Free BrainMass Quizzes
Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

The Moon

Test your knowledge of moon phases and movement.

Basic Physics

This quiz will test your knowledge about basic Physics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.