A 2.0-g particle moving at 8.2 m/s makes a perfectly elastic head-on collision w

Question

A 2.0-g particle moving at 8.2 m/s makes a perfectly elastic head-on collision with a resting 1.0-g object.
(a) Find the speed of each particle after the collision.
2.0 g particle Correct: Your answer is correct. m/s
1.0 g particle Incorrect: Your answer is incorrect. m/s

(b) Find the speed of each particle after the collision if the stationary particle has a mass of 10 g.
2.0 g particle Incorrect: Your answer is incorrect. m/s
10.0 g particle m/s

(c) Find the final kinetic energy of the incident 2.0-g particle in the situations described in parts (a) and (b).
KE in part (a) Incorrect: Your answer is incorrect. J
KE in part (b) J

Explanation / Answer

A 2.0 g particle moving at 7.4 m/s makes a perfectly elastic head-on collision with a resting 1.0 g object. (a) Find the speed of each after the collision. -Done 2g mass- 2.467m/s 1g mass- 9.867m/s (b) If the stationary particle has a mass of 10 g, find the speed of each particle after the collision. -Done 2g mass- -4.933m/s 1g mass- 2.4667m/s Just us KE=1/2*m*V^2

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