Which is an example of rolling friction? marking with a pencil
O greasing a door hings
O writing with a ballpoint pen
O skiing

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

When does your body conduct current more readily?