This time, your mass is 64.4 kg and the sled s mass is 23.1 kg. You re on the sled, initially moving to the west at 5.49 cm/s. From the southern shore, your friend throws a baseball of mass 0.150 kg, which you catch as it s traveling northward with a horizontal velocity component of 21.1 m/s. What will be the sled s (and your) speed after catching the ball? a) 4.90 cm/s b) 13.6cm/s c) 2.62cm/s d) 6.56cm/s

Two carts on a track are headed toward each other, and have a head-on collision.Cart 1 has a mass of 2 kg and is traveling at 3 m/s, and Cart 2 has a mass of 3 kgand is traveling at 1.5 m/s. After the collision, Cart 2 has a speed of 0.75 m/s inthe opposite direction it was originally traveling.a. What is the speed and direction of cart 1 after the collision?b. What is the change in energy during this collision? Is it elastic?c. What type of collision is it?

Object A has a mass 4 kg and is traveling to the right at speed 6 m/s. Object B is traveling to the left at 6 m/s. The objects collide head-on, and afterward each has a speed of 6 m/s. Which of the following could be the mass of object B? Select two of the answers below A. 4 kg B. 6 kg C. Negligible compared to 4 kg D. 2 kg

A miniature spring-loaded, radio-controlled gun is mounted on an air puck. The gun’s bullet has a mass of 5.00 g, and the gun and puck have a combined mass of 120 g. With the system initially at rest, the radio controlled trigger releases the bullet causing the puck and empty gun to move with a speed of 0.500 m/s. What is the bullet’s speed? a. 4.80 m/s.        b. 11.5 m/s          c. 48.0 m/s                    d. 12.0 m/s