Purchase Solution

Speed of object after it is ejected by a spring

Not what you're looking for?

Ask Custom Question

A block of mass m slides without friction on a table with speed v. It hits and compresses a spring of force constant k by a distance l. The spring then expands again ejecting the block in the opposite direction as it was originally traveling. Neglecting the mass of the spring, what is the speed of the object after it is ejected by the spring?
v/2
2v
v
v - l*sqrt(k/m)

Purchase this Solution
Solution Summary

Detailed explanation of the problem along with solution. The speed of the object after it is ejected by the spring is determined.

Solution Preview

The mass is moving without friction with a velocity v.

Then we can write the Kinetic energy possessed by the mass as, KE = 1/2 m v^2 = 0.5 m v^2

As per the law of conservation of ...

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.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

The Moon

Test your knowledge of moon phases and movement.

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.

Classical Mechanics

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

View More Free Quizzes
Related BrainMass Solutions

  • Spring Constant and Stored Energy

    The spring then expands again ejecting the block in the opposite direction as it was originally traveling. Neglecting the mass of the spring, what is the speed of the object after it is ejected by the spring?

  • Spring Compression, Speed and Distance

    A 1.50 kg object slides to the right on a surface having a coefficient of kinetic friction = 0.250 (Fig. P7.50). The object has a speed of vi = 3.50 m/s when it makes contact with a light spring that has a spring constant of k = 50.0 N/m.

  • Calculating Speed

    If there is negligible friction between the ice and the table, what is the speed of the block of ice when it reaches the floor?

  • Physics: Springs and Compression

    One spring is quite stiff (hard to compress), while the other one is quite flexible (easy to compress). Which of the following statement is or are true? A. Both objects will have the same maximum speed after being released B.

  • Spring constant problem: Work done, speed of block, maximum compression

    The first part of your problem asks "How much work is done on the block by the spring force?" The definition of work on an object by a force is the product of the amount of force acting on that object times the distance the force acts.

  • Formation of the moon

    This theory is generally discounted due to the improbability of an object to pass by the Earth at just the right speed and just the right time to get caught in the Earth's gravitational pull.

  • Mass-spring system, clock pendulum, submarine sonar echo

    A clock uses a pendulum that is 75 cm long. The clock is accidently broken, and when it is repaired, the length of the pendulum is shortened by 2 mm. Consider the pendulum to be simple pendulum. (a) Will the repaired clock gain or lose time?

  • Simple Harmonic Motion & Elasticity, Reference Circle and Energy

    A spring is hung from the ceiling. 0.045 kg block is then attached to the free end of the spring. When released from rest, after which it moves back upward. (a) What is the spring constant of the spring?

  • kinetic energy and potenital energy

    A block of mass m is initially moving to the right on a horizontal frictionless surface at a speed v. It then compresses a spring of spring constant k.

View More Related Solutions