a block of mass M is held on a horizontal table against a compressed horizontal (massless) spring. When released from rest, the block is launched along the tabletop and eventually comes to a stop after sliding a total distance L. The initial spring compression is x_0 and the spring constant is...
A child slides down a slide with a 28° incline, and at the bottom her speed is precisely one half what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
here's the two equations I used:
sin28*m*g=m(v2/t)...
Kinetic Friction !
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Ok guYS, Really need help for this... i have been staring at this question blankly...
The ONly solution i came up was to integrate the net acceleration with respect to x. But i what do u get when u integrate acceleration... the answers for part a is 4 m and...
For example, there is a rotating cylinder with a moment of intertia of 1.5, a speed of 10 rad/sec and a force perpendicular to the rim of 5 Newtons and they have a kinetic friction coeffecient of .5.
How long does it take to stop?
are there three situations where people need a low coefficient of kinetic friction and 3 situations where you might need a high coefficient of kinetic friciton? thnx!
A horizontal force of 45N is required to accelerate a 5kg block by 4m/s2 on a horizontal surface. I need to find the coefficient of kinetic friction between the block and the surface by assuming g= 10m/s2. How would I go about doing this?
Hey...this problem arose:
A force of 40N is required to start a 5 kg box moving across a horizontal concrete floor.
A) What is the coefficient of static friction between the box and the floor? (its .82, I got this no problem)
B) If the 40N force continues, the box accelerates at 0.7...
5. The drawing shows a large cube (mass = 23 kg) being accelerated across a horizontal frictionless surface by a horizontal force P. A small cube (mass = 3.2 kg) is in contact with the front surface of the large cube and will slide downward unless P is sufficiently large. The coefficient of...
There are 3 blocks on a table. One of the blocks, block C, is in the middle of the table with mass 2M. There are two pulleys on the edges of the tables. The pulley on the left is attached to block C and is attached to block A (which has a mass of M) such that it is hanging off of the pulley and...