(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A grasshopper jumps 1.00 m from rest, with an initial velocity at a 45.0 degree angle with respect to the horizontal. Find a. the initial speed of the grasshopper (the answer is 3.13 m/s) and b. the maximum height reached ( the answer is .250 meters).

2. Relevant equations

V naught of x= v naught (hyp. of v. vectors) times cos (projection angle)

It should all be derived from the basic mechanic equations;

V= vnaught times time + a times time

Delta x= vnaught times time + .5 a times time squared

v squared= v naught squared + 2a delta x

I suspect they want me to use the cosine and sine versions but I need the steps so I can truly understand what I'm looking for!

3. The attempt at a solution

I keep getting zero I don't understand

Can somebody please give me all the steps for this problem and what formulas to use if I don't have them. I can crunch the numbers but for some reason I have a mental block on this problem. I don't even get how if it starts at rest, it can have any other value but zero.

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# Homework Help: How do I solve this problem without time?

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