A 57.0 kg pole vaulter running at 9.00 m/s vaults over the bar.

The acceleration of gravity is 9.81 m/s
I got 4.28 and I don't know what i did wrong

2

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If the vaulter’s horizontal component of velocity over the bar is 1.7 m/s and air resistance

is disregarded, how high is the jump?

Answer in units of m.

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

The mantle is made up of which structural zones?

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.