Recent content by Xand888

This question might help you better identify zero-force members: If you were to remove some trusses from this structure, which ones could you remove in order for the structure to still support the P load acting at joint E? Hint: You only need three trusses to do this.

You're first declaration: F*d = (1/2)*m*v^2 seems logical, you're assuming all kinetic energy must be reduced to zero by the work done through braking. The assumption that the braking force is constant in both situations seems adequate for the problem. If speed is increased to 1.5...

I would have to say that you just need to find the distance the bullet falls before it hits the target, then, if one were to raise the level of the rifle by this distance, the next bullet would hit dead center. Since they want a distance in centimeters rather than an angle in radians or degrees...

y-y0 = v0sin(Ø0)t-1/2gt2 "If the center of the target is level with the rifle" This is the cue you need to interpret. Based on this cue you can *simplify* the above equation. This does assume that you know which way your angle is being measured. Think about the initial speed and the...