Question

In: Physics

A 2 kg mass moving to the right at 10 m/s collides elastically with a 2.4...

A 2 kg mass moving to the right at 10 m/s collides elastically with a 2.4 kg mass moving to the left at 8.33 m/s. After the collision the 2 kg mass moved at a speed vgf in a direction of 30 degrees and the 2.4 kg object at a speed vbf in a direction 30 degrees south of west.
(5 pts) a. What is the difference between an elastic and an inelastic collision?

(15 pts) b. Find the velocity of the 2 kg object after the collision. (15 pts) c. Find the velocity of the 2.4 kg object after the collision. Use conservation of momentum in two dimensions.

Solutions

Expert Solution

A.

In elastic collision total linear momentum, kinetic energy and total energy are conserved i. e. remain same before and after the collision.

In an inelastic collision, linear moment and total kinetic energy are conserved but the kinetic energy isn't conserved.

​​​​​

genius_generous answered 2 years ago
Next > < Previous

Related Solutions

2. A 10 kg ball moving to the right with a speed of 6.0 m/s collides...
2. A 10 kg ball moving to the right with a speed of 6.0 m/s collides with a 20 kg ball moving to the left at a speed of 4.0 m/s. (a) If this is a head-on, perfectly inelastic collision, what is the velocity of the balls after the collision. Give magnitude and direction. (5 pts.) (b) If this is a head-on collision and the the 10 kg ball moves to the left with a speed of 7.0 m/s after...
A mass is moving at 10 m/s in the +x direction and it collides in a...
A mass is moving at 10 m/s in the +x direction and it collides in a perfectly elastic collision with a mass of 4 kg moving in the -x direction. The collision takes places in 0.22 seconds and after the collision the mass that was moving in the +x direction is moving in the -x direction at 8 m/s and the mass that was moving in the -x direction is moving in the +x direction at 14 m/s. What is...
A mass is moving at 10 m/s in the +x direction and it collides in a...
A mass is moving at 10 m/s in the +x direction and it collides in a perfectly elastic collision with a mass of 2 kg moving in the -x direction. The collision takes places in 0.21 seconds and after the collision the mass that was moving in the +x direction is moving in the -x direction at 9 m/s and the mass that was moving in the -x direction is moving in the +x direction at 13 m/s. What is...
An object of mass m is moving in +x direction at u velocity and collides elastically...
An object of mass m is moving in +x direction at u velocity and collides elastically with a stationery object in the x direction having a mass M. after the collision the object with mass m travels in +y direction and the object with mass M travels in a direction with an angle theeta to the x axes. find the value of theeta?
A 30.0-g object moving to the right at 20.5 cm/s overtakes and collides elastically with a...
A 30.0-g object moving to the right at 20.5 cm/s overtakes and collides elastically with a 11.0-g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision. (Take the positive direction to be to the right. Indicate the direction with the sign of your answer.)
A railroad car of mass 3.10 ✕ 10^4 kg moving at 3.50 m/s collides and couples...
A railroad car of mass 3.10 ✕ 10^4 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? __m/s (b) How much kinetic energy is lost in the collision? __J
A(n) 43.1 g object moving to the right at 26.5 cm/s overtakes and collides elastically with...
A(n) 43.1 g object moving to the right at 26.5 cm/s overtakes and collides elastically with a(n) 12.1 g object moving in the same direction at 18.9913 cm/s. Find the velocity of the first object immediately after the collision. Answer in units of cm/s. Find the velocity of the second object immediately after the collision. Answer in units of cm/s.
A ball (Ball A) moving at 10.0 m/s overtakes and collides elastically with an identical ball...
A ball (Ball A) moving at 10.0 m/s overtakes and collides elastically with an identical ball (Ball B) moving at 4.00 m/s in the same direction. 1) Find the speed of Ball A after the collision. 2) Find the speed of Ball B after the collision.
A 2 kg ball moving W at 5 m/s collides head on with a 1.5 kg...
A 2 kg ball moving W at 5 m/s collides head on with a 1.5 kg ball moving E at 8 m/s. Ifthe collision is elastic, compute the velocity of each ball after the collision.
A railroad car of mass 18800 kg moving at 3.85 m/s collides and couples with two...
A railroad car of mass 18800 kg moving at 3.85 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 2.31 m/s. How much kinetic energy is lost in the collision? Answer in units of J.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT