Part One: Linear Collisions and Conservation of Momentum /4 1. a. Use the numbers provided in the tables below to calculate the missing values then answer the questions that follow. Assume three significant digits. Object Mass Initial Final Change Initial Final Change in (kg) V in v momentum momentum momentum (m/s) (m/s) (m/s) (kg.m/s) (kg.m/s) (kg.m/s) blue 2.00 6.00 2.00 green 4.00 0.00 2.00 Object Mass Initial Final Change Initial Final Change in (kg) V in v momentum momentum momentum (m/s) (m/s) (m/s) (kg-m/s) (kg.m/s) (kg.m/s) blue 2.00 6.00 1.50 green 6.00 3.00 4.50 b. Determine the impulse on the green mass in table 2. /1/1 c. Use unit analysis to show how the unit for impulse is the same as the unit for momentum. /2 2. Explain how a hockey player can increase the impulse on a puck to complete a slap shot. 13 3. Object A, with a mass of 2.0 kg, is travelling to the right at 15.0 m/s. Object B, with a mass of 12.5 kg, is also travelling at 15.0 m/s, but to the left. If the two objects stick together upon impact, what is the final velocity of the system? 4. A 250-g firecracker explodes into two pieces. The first piece has a mass of 97 g and flies off to the right at 16 m/s. a) What is the velocity of the second piece? /3/1 b) What physics principle did you use to solve this? Hint: see data sheet for list of physics principles. /2 5. Object A, initially travelling to the right, collides with object B, which is at rest. After the collision, object A moves back to the left and object B remains at rest. Neglecting friction, is this possible? Explain. /2 6. An object is travelling to the right and collides with another object that is at rest. After the collision, both objects travel to the right, but at different speeds. Neglecting friction, is this possible? Explain