(Answered) Erica 35 kg and danny 48 kg are bouncing on a trampoline

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Erica (35 kg) and Danny (48 kg) are bouncing on a trampoline. Just as Erica reaches the high point of her bounce, Danny is moving upward past her at 4.3 m/s. At that instant he grabs hold of her.

What is their speed just after he grabs her?

Express your answer to two significant figures and include the appropriate units.

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