Recent content by gold123456th

i got it! thanks

Can you show me how to do that? I tried but had no luck

Yeah of course

Homework Statement A soft clay block is suspended so as to form a so-called ballistic pendulum. A bullet is fired point-blank into the block, imbedding itself therein and raising the latter to a height h. Derive an expression for the percentage of the kinetic energy converted into internal...

I just edited the thread. Hope all the info are there

Homework Statement Show how to simplify (mBvB2 - mBvC2 - mCvC2)/(mBvB2) to mC/(mC + mB) Homework Equations vB is not equal to vC. vB = muzzle speed of a bullet = unknown value vC = speed of the clay block after it is hit by the bullet = unknown value vB = ((2gh)0.5(mB + mC))/mB vC =...

Homework Statement Suppose a 6.00g bullet traveling at 100m/s strikes a bulletproof vest and comes to rest in about 600microseconds. What average force will it impart to the happy wearer? Homework Equations Use the Momentum-Impulse Theorem I took the initial direction of the bullet as...

But then a vertical line would be drawn. Can vertical lines appear on a force-time graph? Then t= 2.0s would have a lot of forces.

A 1.0kg body initially traveling in the positive x-direction at 10m/s is acted upon for 2.0s by a force in that same direction of 20N. It then experiences a force acting in the negative direction for 20s equal to 2.0N. Draw a force-time curve and determine the final momentum Homework...