Jermaine is riding his skateboard around the playground when he “accidentally” bumps into his older brother, Tito, who is sitting motionless on a swing. Jermaine’s mass is 35 kg and Tito’s mass is 45 kg and Jermaine comes to rest because of the collision. If Tito swings up to a height of 0.50 m above his starting position because of the collision, how fast was Jermaine moving just before the collision

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