in-an-experiment-a-block-of-mass-2-m-is-released-from-rest-down-the-4-2-m-high-c

Question

In an experiment, a block of mass 2m is released from rest down the 4.2 m high curve, as shown. The block collides with a second block of mass 3m at the bottom of the curve. Assuming a perfectly elastic collision, determine the rebound height of the 2m block.

Diagram showing a 2m block at 4.2m height above a 3m block, illustrating elastic collision.

Accepted Answer

16.8 cm

Answer

4.20 m

Answer

46.3 m

Answer

9.23 cm