Question: Consider 2 balls in the set up shown below. They each hang on a string of length 1.2 m. The first ball has a

Consider 2 balls in the set up shown below. They each hang

Consider 2 balls in the set up shown below. They each hang on a string of length 1.2 m. The first ball has a mass of 1.6 kg and is pulled back such that it makes an angle of 45 degrees. Ball 2 hangs stationary with a mass of 0.8 kg. When the first ball is released, it will fall and collide at the lowest point of its swing. l=1.2m 45 M a. What is the gravitational potential energy of ball 1 while it is pulled back to 45 degrees? [2 mark] b. What is the speed of ball 1 when it hits ball 2? [1 mark] c. If the objects have a head on elastic collision, what is the speed (no need for direction) of each one immediately after? [2 marks] d. If instead the two balls stuck together when colliding, what is the maximum height they would reach after the collision. (Assume conservation of mechanical energy after the collision) [3 marks]

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