12. A trail maintenance team is using explosives to remove a 895 kg boulder from a trail. When the explosive charge is detonated, the boulder splits into two parts. The larger part has a mass of 515 kg, and moves west at a speed of 3.4 m/s. What is the velocity of the smaller part?

A 1200-kg car moving at 15.6 m/s suddenly collides with a stationary car of mass 1500 kg. If the two vehicles lock together, what is their combined velocity immediately after the collision? 5.5 m/s O 8.6 m/s O 6.9 m/s O 12.1 m/s

5. The figure shows three balls of clay moving on a frictionless horizontal surface just before a collision. The three collide simultaneously and stick together. Find the speed and direction of the blob of clay after the collision. Draw the blob after the collision and show its velocity vector. 40 g 45° 4.0 m/s 3.0 m/s 30 g 2.0 m/s 20 g

A 0.19 kg arrow is shot at +42 m/s. It hits an apple (m = 0.62 kg), and goes through the apple, leaving with a velocity of +23 m/s.What is the velocity of the apple after the arrow leaves it?

Bob and Tom take a sled weighing 10 N to a frozen pond. The sled is initially at rest on the ice. Bob who weighs 490 N runs at 2 metres per second and jumps on the sled. A few seconds later, Tom who weighs 540N runs at 4 metres per second and jumps on the sled with Bob. Keep all values to 3 decimal places. A)What is the velocity of the sled after Bob jumps on to it? B)What is the velocity of the sled after Tom jumps on it?

A child sleds down a hill and collides at 5.6 m/s into a stationary sled that is identical to his. The child is launched forward at the same speed, leaving behind the two sleds that lock together and slide forward more slowly. What is the speed of the two sleds after this collision?

23. Please give detailed answer.

A child runs at 3.0 m/s and jumps onto a sled, initially at rest. If the child's mass is 40 kg, and the sled's mass is 20 kg, what is the speed the child and sled slide off together after the collision? O2.0 m/s O 0.5 m/s O 3.0 m/s O 1.0 m/s

You and another astronaut are in space.  You throw a tool to them that has a mass of 17kg.  Your mass is 87kg and the other astronaut's mass is 91kg. Initially you and the other astronaut are at rest.  You threw the tool at a speed of 7m/s.  What is the velocity of the astronaut after they catch the tool?

A 2.51 kg ball of clay is traveling straight north with a speed of 24.0 m/s, collides with a 3.55 kg ball of clay traveling straight east with a speed of 22.1 m/s. What is the speed of this new ball of clay after its collision? What direction is it traveling, given as a degree north of east?