6. Owen is standing on the ice in a skating rink. He pushes against the boards with a force of 15 N and he has a mass of 40 kg. A) What will his acceleration be when he lets go of the boards or the rink? (5 points) 6 B) What will happen to his rate of acceleration after he lets go of the boards. Explain why? (2 points) 6 C) Describe which way he will move and what will cause him to stop moving in the end. (2 points) 7. A 2100 kg sports car is approaching a stop sign and is slowing down at a rate of 4.5 m/sz. A) What is the net force required to bring the car to a stop? (5 points) B). In coming to a stop the cars kinetic energy must be converted to some other form of energy. What form of energy do you think the cars kinetic energy is converted to and where on the car does this conversion take place? (2 points) 8. A plastic bag can stand a force of 275 N before it rips. When lifted the bag will have a maximum acceleration of 6.0 111152. What is the maximum mass that can be put in the bag? (5 points) 9. A 0.250 kg ball of plasticine (modelling clay) moving at 5.0n1/s overtakes (catches up to) and collides with a 0.300kg ball of plasticine travelling in the same direction. If the two balls stick together at the time of collision, what will be the nal velocity of the two balls (now stuck together) and moving as one object? (5 points) 10. a. A race car (likely a Tesla nowadays) can reach a speed of 100 kin/hr in 1.95 s. Ifthe car has a mass of 689 kg and the driver has a weight of 833 N what will be the average acceleration of the car? (5 points) b. The same car does a drag race of 350 m and completes the distance in 4.67 s If the acceleration if constant, nd the average acceleration and its nal velocity (5 points)