A railroad car moving at a speed of 3.20 m/s overtakes, collides, and couples with two...

A railroad car moving at a speed of 3.20 m/s overtakes, collides, and couples with two coupled railroad cars moving in the same direction at 1.20 m/s. All cars have a mass of mass 1.10 105 kg. Determine the following.

(a) speed of the three coupled cars after the collision____ (Give your answer to at least two decimal places.) m/s

(b) kinetic energy lost in the collision ___ J

2. A cue ball at rest on a frictionless pool table is hit dead center by a pool stick, giving it an impulse of +0.55 N · s. The ball slides (the combination of hitting the ball dead center and no friction allows this to happen) along the table and makes a head-on elastic collision with another pool ball. If both pool balls have a mass of 0.166 kg, determine the velocity of the second ball the instant after the collision. (Indicate the direction with the sign of your answer.) m/s

Expert Solution

genius_generous answered 1 year ago

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.

A railroad car of mass 35000 kg moving at 4.00 m/s collides and couples with two...

A railroad car of mass 35000 kg moving at 4.00 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 2.00 m/s. a) What is the speed of the three coupled cars after the collision? b) How much kinetic energy is lost in the collision?

A railroad car of mass 2.20 ✕ 104 kg moving at 5.00 m/s collides and couples...

A railroad car of mass 2.20 ✕ 104 kg moving at 5.00 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 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 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 car moving at a constant speed of 40m/s overtakes a stationary police car which immediately...

A car moving at a constant speed of 40m/s overtakes a stationary police car which immediately starts to chase the speeding car at a constant acceleration. What is the speed of the police car when it overtakes the speeding car? (Note: No other knowns except speed of speeding car and that the police car has constant acceleration).

Constants A 3.20 kg box is moving to the right with speed 8.00 m/s on a...

Constants A 3.20 kg box is moving to the right with speed 8.00 m/s on a horizontal, frictionless surface. At t = 0 a horizontal force is applied to the box. The force is directed to the left and has magnitude F(t)=(6.00 N/s2 )t2 What distance does the box move from its position at t=0 before its speed is reduced to zero? Express your answer with the appropriate units. If the force continues to be applied, what is the velocity...

A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving...

A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving south at 20 m/s, and the two cars stick together. Consider east the positive x-direction and north the positive y-direction. a) What is the x-component of the initial momentum before the collision? ( -7100 kg·m/s, 64900 kg·m/s or 28900 kg·m/s) b) What is the y-component of the initial momentum before the collision? (-36000 kg·m/s, -7100 kg·m/s, 64900 kg·m/s or 36000 kg·m/s) c) What is...

A car moving due east at 6 m/s collides at the intersection with an identical car....

A car moving due east at 6 m/s collides at the intersection with an identical car. If the entangled wreckage moves at 5.5 m/s at 22 degrees north of east after the collision, what was the velocity and direction of the second car immediately before the collision? The entangled wreckage slides along the horizontal road leaving skid marks. If the coefficient of friction between the entangled wreckage and the road is 0.34, how long are the skid marks?

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.)

Question