Recent content by dan1el

The opposite force when you push a block, acts on your hand, not the block.

The answers in the book are wrong, apparently, so there's no problem after all. Thanks anyway!

I still get the same result. \int^v_{v_0} \frac{\mathrm{d}u}{u^2 + \frac{mg}{C}} = \sqrt {{\frac {C}{mg}}} \left( \arctan \left( \sqrt {{\frac {C}{mg}}}v _{{0}} \right) -\arctan \left( \sqrt {{\frac {C}{mg}}}v \right) \right) If you then let B = -\arctan (\sqrt{{\frac...

Homework Statement A baseball, with mass m = 0.145 kg, is thrown directly upward from z(0) = 0 m, with initial speed v(0) = 45 m/s. The air drag on the ball is given by Cv2, C = 0.0013 Ns2/m2. Set up a diff. eq. for the ball's movement and solve it for both v(t) and z(t). m = 0.145 kg C =...