A 1.2kg ball falling vertically hits the floor with a speed of 2.5m/s and rebounds with a speed of 2.0m/s. What is the magnitude of the impulse exerted on the ball by the floor?
Monday, February 23rd, 2009
jpechbre asked:
Posts Tagged ‘Impulse’
I’am a total novice in this field. I like many wonder how an alternating current can be transmitted through space as an impulse( unlike D.C) . I understand that light is similar radiation.But how exactly energy moves though vacuum space.
Saturday, January 3rd, 2009
GUK asked:
In tae-kwon-do, a hand is slammed down onto a target at a speed of 10 m/s and comes to a stop during the 3.0 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.60 kg. What are the magnitudes of the (a) impulse and (b) average force on the hand from the target?
Wednesday, December 24th, 2008
LittleSun asked:
A proton has mass 1.7 *10-27 kg. What is the magnitude of the impulse required in the direction of motion to increase its speed from 0.994c to 0.997c?
Thursday, December 18th, 2008
Derrick asked:
I know that the impulse is 26 N[times]s. If the mass of the cart is 2 kg and the cart is initially at rest, calculate its final speed. I have already tried 26.4m/s for the question concerning the 2kg being initially at rest and it was incorrect.
Wednesday, November 19th, 2008
curiousricol asked:
A proton has mass 1.7 10-27 kg. What is the magnitude of the impulse required in the direction of motion to increase its speed from 0.991c to 0.994c? Answer should have the units N*s The answer I’ve gotten is 1.53e-21. The two answers people have put here are both miscalculations. The first speed is .991 not .99. And there’s no way that it equals 0. Check the math. But WebAssign keeps telling me I’m wrong.
Saturday, November 15th, 2008
galofdasouth asked:
Sampling is referred too in many signal processing books as being the multiplication of a signal in the time domain by an impulse train, or a series of Dirac deltas. But a Dirac delta has an infinite value at one point, how can it be used to sample a value? Wouldn’t that make all sampled values to be equal to infinity?
Thursday, October 23rd, 2008
Canadian O asked:
Was ist der Impuls von der Netto-Kraft, die auf den Ball während der Kollision mit dem Boden?
Sunday, September 28th, 2008
miniz1988 asked:
A 0,660-kg-Kugel wird aus einer Höhe von Rest an einem Punkt 2,10 m über dem Boden. Der Ball prallt gerade nach oben bis zu einer Höhe von 1,20 m. Angesichts der negativen Richtung werden nach unten, was ist der Impuls von der Netto-Kraft, die auf den Ball während der Kollision mit dem Boden?
