Recent content by kingofretards

That didn't help either It calculated as 3.612, but that was wrong as well.

Homework Statement Find the x- and y-coordinates of the center of gravity of a 4.00 ft by 8.00 ft uniform sheet of plywood with the upper right quadrant removed as shown in the figure below. The dimensions of the cutout are a = 4.30 ft and b = 1.70 ft. I found: xA= 3.7/2 cm...

I don't think force has anything to do with it.

If so, what is the angle? I couldn't find any angles at all. It says the speed and angle at impact (when it hits the ground), not at start. So how can I find them? I still don't understand it.

Yes, but I don't know which formulas to use. I just don't know how to find time. I have the formulas ready, but if all i have is the distance, but how can I find time, if I'm looking for velocity?

Homework Statement A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 23.0 m/s. The cliff is h = 22.0 m above a flat horizontal beach. 1. How long after being released does the stone strike the beach below the cliff? 2. With what speed...

Homework Statement Suppose a Chinook salmon needs to jump a waterfall that is 1.50 m high. If the fish starts from a distance 1.18 m from the base of the ledge over which the waterfall flows, find the x- and y-components of the initial velocity the salmon would need to just reach the ledge at...