Np Fysik Åk: 9 [new]

"Lifting it too fast could snap the rope," the captain warned. " – force causes acceleration. Too much acceleration breaks things." 4. The rescue They used a hand-crank connected to a block-and-tackle. Alva felt the force in her arms. "This is mechanical advantage ," she said, sweating. "The rope pulls many times, so my force is multiplied."

"That's how much energy we need to give the chest to lift it," she said. "Can't we just pull it straight up?" Milo asked. np fysik åk 9

Milo groaned. "That sounds like a physics problem. I'm out." "Lifting it too fast could snap the rope,"

Slowly, the chest rose. When it broke the surface, Milo gasped. "It worked!" The rescue They used a hand-crank connected to

Captain Granit smiled. "Good. Let’s start with , young navigator." 1. Energy – The invisible currency "The chest at the bottom has potential energy because it’s deep," the captain explained. "But we need to give it kinetic energy to move it up."