Thursday
September 18, 2014

Homework Help: physicssss

Posted by aaa on Saturday, October 8, 2011 at 3:31pm.

A mass m = 73 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 17.9 m and finally a flat straight section at the same height as the center of the loop (17.9 m off the ground). Since the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it must be released above the top of the loop-the-loop height. (Assume the mass never leaves the smooth track at any point on its path.)

What is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track?

What height above the ground must the mass begin to make it around the loop-the-loop?

If the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop?

If the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (17.9 m off the ground)?

Now a spring with spring constant k = 15500 N/m is used on the final flat surface to stop the mass. How far does the spring compress?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A mass m = 76.0 kg slides on a frictionless track that has a drop, ...
physics - A mass m = 76.0 kg slides on a frictionless track that has a drop, ...
physics - A mass m = 88.0 kg slides on a frictionless track that has a drop, ...
physics - A mass m = 73 kg slides on a frictionless track that has a drop, ...
physics - A small block of mass 42 kg slides along a frictionless loop-the-loop...
MITx: 8.01x Classical Mechanics - An object of mass m is released from rest at a...
Physics - A small block of mass m = 1.3 kg slides, without friction, along the ...
physics - A small block of mass m = 1.1 kg slides, without friction, along the ...
physics - A small block of mass m = 1.1 kg slides, without friction, along the ...
Physics - A massless spring of constant k = 91.0 N/m is fixed on the left side ...

Search
Members