## 1…2…3… My Blog

123myblog – random reflections on anything under th sky and beyond

Source: *1…2…3… My Blog*

## Resistance In Circuit

Please solve this problem. And please keep in mind that i have just passed 10th standard guyz.

Asked Govind

## Newton’s 2nd Law, 2 Crates held by a Pulley

Two crate A and B are connected with a rope with negligible mass over a frictionless pulley as represented below. The crates are at rest. Crate A has an unknown mass and hangs vertically to the right of the slope and crate B with mass 22 kg, hangs on the slope to the left. The slope makes and angle of 67 degrees with the horizontal. The static coefficient of friction between crate B and the surface of the slope is 1.716. The frictional force is up the slope.”

The Answer is suppose to be 5.5Kg, but I don’t know how to get it.

Please Help

Asked Greg Sithole

## Find the resistance between A & B

How to find resistance here? what will be resistance?

## Physics – Bungee Jumping Problem

A 55kg woman bungee jumps from a bridge and reaches a maximum velocity of 24.2m/s. The bridge is 60m above the water. When the woman is at the bottom of her trajectory, she is 9 m above the water.

What is the spring constant of the bungee cord?

Asked Mina

## Coulomb’s law

at each of the four corners of a sqare of side A, a charge +q is placed freely. what charge should be placed at the centre of the sqare so that whole system be in equilibrium

Asked Shashank