A 30 g bullet, with a horizontal velocity of 516 m/s, stops 19 cm within a solid wall.(adsbygoogle = window.adsbygoogle || []).push({});

(a) What is the change in its mechanical energy?

(b) What is the magnitude of the average force from the wall stopping it?

For Part a, To find the change in mechanical energy, do I use the equation: ME=(1/2)mv^2 + mgh

For Part b, I can use this equation F=m*a

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# Homework Help: Hwk Problem: Mechanical Energy

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