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Excellent human jumpers can leap straight up to a height of 110 cm off the ground. To reach this height, with what speed would a person need to leave the ground?

**Answer:** Vo = 4.6456 m/s

## Explanation

Given values:

h = 110 cm = 1.1 m

We will view this problem as a shot upwards.

The jumper jumps and reaches a certain height h.

At the beginning of the jump, he has some speed Vo, while at the end of the height h, his speed will be equal to zero, and then he would start falling back to the ground.

*v* is the speed at the end of the height *h*.