Recent content by Binayak95

Homework Statement A ball falls freely to the ground from a height of 5m and rises back to a height of 2.5m after the first rebounce. Find the coefficient of restitution.

Homework Statement The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A .30 caliber bullet has mass 0.0072kg and a speed 0f 601 m/s relative to the muzzle when fired from a rifle that has mass 2.8 kg. The loosely held rifle recoils at a speed of 1.85 m/s...

We all think that by increasing the temp of a liquid, the surface tension would reduce and so capillary rise will not be as high. But on increasing the temp, the liquid's density also decreases and so the weight of liquid to be lifted also reduces. Which will have the dominating effect, decrease...

I thought that since g would drop to zero bouyant force would also reduce to zero. Since Viscous force would still exist, the sphere's velocity would reduce and eventually the sphere would be pushed against the elevator's roof.

A sphere inside an elevator is falling at terminal velocity. Say the elevator cables break and it starts to freefall, what happens to the sphere's velocity? I have developed some rudimentary solution but would like to see a confirmation.