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

Bullet = 0.02 kg

pendulum block = 2 kg

bullet fired from (0m,0m) with velocity of (x m/s, 30 deg)

pendulum block located (30m, 30deg)

the maximum height reached by pendulum is 0.2 meter

what is the value of X

2. Relevant equations

I've tried several ways to approach this problem. the problem is the angle that it hits the bullet.

3. The attempt at a solution

If the angle was out of the problem, i get an answer of 199.98 m/s/s. i used mgh=1/2mv^2 to get the velocity final, then worked backwards to plug that into the conservation of momentum equation:

(0.02)(Vi) = (2.02)(1.98) = 199.98

this is about as far as i got without running into a wall. What i think is that the 199.98 is the X component, and using that I can solve for the resultant. But how?

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# Homework Help: Conservation of momentum - bullet/pendulum

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