Physics Question. Realted to Momentum? i think.?

PHILEMON

New member
Analytically:
m1*v1 + m2*v2 = (m1+m2')*vf
0.5*m1*v1^2 = K1
0.5*(m1+m2')*vf^2 = K2
K1 - K2 = KE lost in collision.

Numerically:
Let me know if you need me to plug the numbers in..
 
A 2.80 x 10^-3 kg bullet is fired with a velocity of 108.6 m/s toward a 5.35 kg block moving at a speed of 0.340 m/s in the same direction. The bullet emerges with a speed of 20.5 m/s and with a small piece of the block with a mass of 0.0017 kg sticking to it. What is the kinetic energy lost in the collision?

If you don't mind, please show all work. I need all the help I can get. Please and Thankyou! [: I appreciate it very much.
A 2.80 x 10^-3 kg bullet is fired with a velocity of 108.6 m/s toward a 5.35 kg block moving at a speed of 0.340 m/s in the same direction. The bullet emerges with a speed of 20.5 m/s and with a small piece of the block with a mass of 0.0017 kg sticking to it. What is the kinetic energy lost in the collision?

If you don't mind, please show all work. I need all the help I can get. Please and Thankyou! [: I appreciate it very much.





To: Philemon.

Yes. Please. Do it numerically. For my answer, i got 1113.3 J that were lost. I would like to know how you would do it and the answer you got. Please & Thankyou.
 
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